Mathematics Middle School

the school decided to raise the price lunches by $0.25. Seth buys the school lunch 5 days a week. Write a formula that will help seth determine how much he'll now spend on lunch every week.

p= old price of school lunch
t= total seth pays for lunch each week

Answers

Answer 1

Seth can calculate his weekly lunch expenses with the formula t = 5 x (p + $0.25), where p is the old price and t is the new weekly total.

The question involves creating a formula that Seth can use to determine how much he will spend on lunch every week after an increase in the price.

Let's define the following variables: p for the old price of school lunch and t for the total Seth pays for lunch each week.

If the school decided to raise the price of lunches by $0.25 and Seth buys the school lunch 5 days a week, the new price of each lunch will be p + $0.25.

Therefore, to calculate the total Seth will pay per week, we use the formula: t = 5 x (p + $0.25).

This formula accounts for the new price Seth will pay for lunch each day, multiplied by the 5 days he purchases lunch at school.

Related Questions

Pls help me I really need it

Answers

The answer is Nice Belt

the lifetime of a smartphone battery while playing video is described by a normal model. if 95% of batteries last between 8.5 and 11.5 hours, what are the mean and standard deviation of the distribution of battery lifetime while playing videos?

Answers

We need to find the mean of these two numbers which is 8.5 and 11.5.To find the mean we just simply add and then divide by the total number in the set.
(8.5 + 11.5) / 2 = 10
Second, we need to subtract the mean from the first number in the data set, and we need to square the differences.
8.5 - 10 = -1.5^2 = 2.2511.5 - 10 = 1.5^2 = 2.25 
Next, we will add the squared differences and we will then divide the total by the number of items.
2.25 + 2.25 = 4.50 / 2 = 2.25
We will next calculate the square root of this mean of the differences to find the standard deviation. 
sqrt(2.25) = 1.5

10 is the mean while 1.5 is the standard deviation of the distribution of battery lifetime while playing videos.

A spider walks about 19 cm each second. About how long would it take the spider to walk around the perimeter of a room that is 3 m wide and 4 m long?

Answers

Final answer:

To calculate the time it takes the spider to walk around the perimeter of a 3 m by 4 m room, we first find the perimeter in meters, convert it to centimeters, and then divide by the spider's speed in cm/s. The perimeter of the room is 14 m, which is 1400 cm. Dividing this by the spider's speed, 19 cm/s, gives us approximately 74 seconds.

Explanation:

To find out how long it would take the spider to walk around the perimeter of a room that is 3 m wide and 4 m long, we first need to calculate the perimeter of the room. The formula for perimeter P of a rectangle is P = 2(l + w), where l is the length and w is the width.

So for a room that is 3 m wide and 4 m long, the perimeter is:

P = 2(4 m + 3 m) = 2(7 m) = 14 m

Since the spider walks 19 cm each second and there are 100 cm in a meter, we convert the perimeter to centimeters:

14 m = 1400 cm

Now, we calculate the time t it will take for the spider to walk this distance by dividing the perimeter by the spider's speed:

t = perimeter/speed = 1400 cm / 19 cm/s

Therefore, the time taken for the spider to walk around the perimeter is approximately:

t = 73.68 s

So, the spider would take about 74 seconds to walk around the perimeter of the room.

Final answer:

To determine the time for a spider to walk around a 3 m by 4 m room, calculate the perimeter (14 m), convert it to centimeters (1400 cm), and divide by the spider's speed (19 cm/s), resulting in approximately 73.68 seconds.

Explanation:

To calculate the time it would take for a spider to walk around the perimeter of a 3 m by 4 m room, first, find the perimeter of the room by adding the lengths of all the sides:

Perimeter = 2 × (3 m) + 2 × (4 m) = 6 m + 8 m = 14 m.

Next, since the spider walks 19 cm each second, convert the perimeter from meters to centimeters because the units need to match.

Perimeter in centimeters = 14 m × 100 cm/m = 1400 cm.

Now, divide the total perimeter by the spider's speed to find the time it takes:

Time = Perimeter / SpeedTime = 1400 cm / 19 cm/sTime ≈ 73.68 seconds

Therefore, it would take approximately 73.68 seconds for the spider to walk around the perimeter of the room.

If a stereo is sold for $59.99 and Karen pays $64.19 for it when she checks out, what is the sales tax in the area

Answers

Okay, so the first thing you need to do is find the difference.

64.19 - 59.99 = 4.20

So the percentage is determined by dividing that difference by the cost of the item originally:

4.20 / 59.99 = about .07

Next, you change this number to a percentage by moving the decimal to the right two spaces, so that would be 7%.

Therefore, the sales tax in the area is 7%. 
Final answer:

The sales tax in the area where Karen bought the stereo is $4.20. This was calculated by subtracting the original price of the stereo ($59.99) from the total price paid ($64.19).

Explanation:

To find the sales tax in this scenario, we need to subtract the original price of the stereo, which is $59.99, from the total price that Karen paid, which is $64.19. The difference will represent the sales tax that Karen had to pay at the checkout.

So we calculate: $64.19 - $59.99 = $4.20

Therefore, the sales tax that Karen paid for the stereo is $4.20.

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write the numerical expressions in words then solve 10×(2.5+13.5)

Answers

two and five-tenths plus 13 and five-tenths times ten


and the answer is 160 

Hope i helped 

please mark me the brainliest
Add 2.5+13.5 then get that awencer. Then you do your awencer times 10

Simplify the expression: 5+12 divided by 2x2

Answers

do 2x2 first which is 4 and then 5+12 which is 17 . 17/4 is 4.25

In one weekend,a theatre sells 74,877 tickets to a new movie. Write the values for each of the 7s in 74,877.

Answers

Answer:

Given number,

74, 877

Since, the place value chart,

Ones = 1,

Tens = 10,

Hundred = 100,

Thousand = 1000,

Ten thousand = 10,000

Hundred thousands = 100,000

Millions  = 1,000,000

Hence, by the above chart,

For the number,

74,877

Place value of 7 at ones place = 7,

Place value of 7 at tens place = 70,

Place value of 7 at ten thousand place = 700,000

Jacob, Kylie, and Manuel each bought a sandwich and drink. The total bill to $21, and each drink cost $2. Of each sandwich cost the same amount, what is the cost of one sandwich?

Answers

We know that each drink costs 2 dollars. and there is 3 people. 2*3=6  
21-6=15 

15/3 = 5

1 sandwich costs 5 dollars! (thats a lot) 
Hope this helps you
1 sandwhich : $5
Cause the 3 drinks that equals $6 and $21 - $6 = 15 and 15\3 people is 5

Susie is an organic vegetable grower the perimeter of her rectangular vegetable garden is 72 yards the width of the vegetable garden is 9 yards how long is the vegetable garden

Answers

I think it is 27 yards long. Hope I helped!

PLEASE HELP!

Sarah paints a straight line. The line is 13 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long. How many sections will the line be divided into?

Answers

First: 13 x 8 = 104
Second: 8/2 = 4 
Third: 104 + 4 = 108 
Your answer is 108


How many times can 4 go into 69

Answers

About 17 times. Just do 69/4
about 17.25 times because 4 time 16 is 64 and 17.25 times is 69

Balu and Pumba shared ½ of a cake. Balu got to eat twice as much cake as Pumba. What fraction of the whole cake did Balu eat?

Answers

Okay. So, basically a 1/2 of a cake would be broken into 3 parts, because Balu eats double the amount Pumba does and Pumba eats cake as well. Let’s do 1/2 / 3. To divide fractions, keep 1/2 the same, change the division into multiplication, and flip 3 into 1/3. Multiply across. 1/2 * 1/3 is 1/6. 1/6 * 2 is 2/6. 2/6 is twice of 1/6 and 1/6 + 2/6 = 3/6. 2/6 in simplest form is 1/3. Balu ate 1/3 of a whole cake.

Answer:

Balu ate [tex]\frac{1}{3}[/tex]fraction of the whole cake

Step-by-step explanation:

Let x be the amount of cake eaten by Pumba

Balu got to eat twice as much cake as Pumba.

Balu eat cake = 2x

Balu and Pumba shared ½ of a cake.

So, [tex]2x+x=\frac{1}{2}[/tex]

[tex]3x=\frac{1}{2}[/tex]

[tex]x=\frac{1}{6}[/tex]

So, Pumba's share = [tex]\frac{1}{6}[/tex]

Balu's share = 2x =  [tex]\frac{2}{6}=\frac{1}{3}[/tex]

Hence Balu ate [tex]\frac{1}{3}[/tex]fraction of the whole cake

The volume of a rectangular prism can be computed by using the formula V=lwh. Which equation is solved for w? A. w=v/lh B. w=lh/v C. w=vl/h D. w=vlh

Answers

The equation w = V/lh can be used to find the width of the rectangular prism option (A) is correct.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

The volume of a rectangular prism can be computed by using the formula

V=lwh.

A rectangular prism can be defined as a six-faced shape, a type of hexahedron in geometry.

It is a three-dimensional shape. It is also called a cuboid.

Solve for w:

w = V/lh

Thus, the equation w = V/lh can be used to find the width of the rectangular prism option (A) is correct.

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Final answer:

The equation solved for w is B. w = lh/v

Explanation:

1. Understand the Formula:

The formula for the volume (V) of a rectangular prism is V =  lwh, where  l is the length,  w is the width, and  h is the height.

2. Isolate w:

To solve for  w, isolate w on one side of the equation.Divide both sides of the formula by lh: V/lh = w

3. Determine the Correct Equation:

Compare the isolated w with the provided answer choices.The correct equation solved for w is w = lh/v

Therefore, the correct answer will be B. w=lh/v

Heather was asked to graph 3x - y = -4 by using slope and y-intercept. Her graph is shown.

Which choice supports the graph that she has drawn?
A) The slope is positive 3 and the y-intercept is (0,4).
B) The slope is negative 3 and the y-intercept is (0,4).
C) The slope is positive 3 and the y-intercept is (0,-4).
D) The slope is negative 3 and the y-intercept is (0,-4).

Answers

Hello! The y-intercept is (0, 4), because the line crosses 0 in the x-axis at that point. We can cross out C and D, because those don't show that. The slope is rise/run. You would go up 3, and go to the right once. If you need to, solve for slope by doing y2 - y1/ x2 - x1. Let's use the point (0, 4) and (1, 7) as an example. We would set it up like this: 7 - 4 / 1 - 0. Solving that would give us 3/1 or just simply three. The slope is positive 3 and the y-intercept is (0, 4). The answer is A.

The correct choice that supports the graph that Heather has drawn is:

The slope is positive 3 and the y-intercept is (0, 4).

Option A is the correct answer.

We have,

To determine which choice supports the graph that Heather has drawn for the equation 3x - y = -4, we need to consider the slope and y-intercept.

The equation is in the form y = mx + b, where m represents the slope and b represents the y-intercept.

Comparing the given equation to the standard form, we can rearrange it as y = 3x + 4.

From this, we can determine that the slope is positive 3 and the y-intercept is (0, 4).

Therefore,

The correct choice that supports the graph that Heather has drawn is:

The slope is positive 3 and the y-intercept is (0, 4).

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Can someone help me on this

Answers

I'm not sure I think the answer 7
Jake- 2 goals
Jaime- 4 times as many as Jake= 2x4= 8 goals
Edgar- 3 times as many as Jamie= 3x8= 24 goals

I believe Edgar scored 24 goals. :)

Which measure of central tendency best describes this situation: the ages of students in an eighth-grade class?

a) Mean; there likely are no outliers.
b) Mode; the data are not numerical.
c) Median; there likely are outliers.
d) Median; there likely are no outliers.

Answers

I would say the mean . It is unlikely there are any outliers

Answer:

Step-by-step explanation:

Its B=median

how to find the answer to this
5g=230 HOW DO I FIND THIS PLZ HELP NOW

Answers

All you have to do is divide both sides by 5 so you can get the variable by itself. In this case, 230 divided by 5 is 46 making g=46
5g = 230

first isolate the g

5g/5 = 230/5 (remember to do the same thing to both sides)

g = 46

your answer is 46

hope this helps

Which expression shows the result of completely factoring and simplifying 3x+9x ? (A) 12x
(B) 3x(3x+9x)
(C) −6x
(D) 9(x+1)

Answers

A is the answer :)
Have a good day
none because if we take 3x as common then the answer will be 3x(1+3)

jamil has 3 pet lizards. the pet store owner said that jamil will need to buy a total of 36 crickets to feed his lizards if each lizard eats the numberbof crickts how many crickts does each lizard eat?

Answers

In order to do this, we need to look at the info.
Here is what we know:
Each lizard eats the same amount.
They need to buy 36 crickets.
There are three lizards.
What we need to know:
How many crickets does each lizard eat?
How to solve:
Divide 36 by three.
Math:
36/3 = 12.
Final answer:
Each lizard eats 12 crickets.
I think it’s 108 I hope I helped

An 8-ounce can of tomatoes costs $1.14.A 12-ounce can costs $1.75.Which can of tomatoes cost the least per ounce

Answers

8 oz costs less per ounce: each ounce is $0.14 and in the 12oz can each oz is $0.15

Answer:

8-ounce can tomatoes costs the least per ounce.

Step-by-step explanation:

Cost of an 8-ounce can of tomatoes = $1.14

cost per ounce of tomatoes =  [tex]\frac{1.14}{8}[/tex]

                                               = $0.1425 ≈ $0.14 per ounce

Cost of an 12-ounce can of tomatoes = $1.75

cost per ounce of tomatoes = [tex]\frac{1.75}{12}[/tex]

                                              = $0.1458 ≈ $0.15 per ounce

Therefore, 8-ounce can of tomatoes cost the least per ounce.

A film set designer is using white and colored tiles in a pattern to create paths of different lengths. If x is the length of the path in feet, the number of colored tiles needed to make it is calculated using the rule

(4x2y3)(3x2y2)

where y represents the number of white tiles.

Which simplified expression represents the number of colored tiles used for a path of length x feet?

7x4y5
7x4y6
12x4y5
12x4y6

Answers

(4x²y³)(3x²y²)

4·3=12
x²·x²=x·x·x·x=x∧4
y³·y²=y·y·y·y·y=y∧5

12x4y5 it is the right answer in the third option

It will help you :)

The simplified algebraic expression for the number of colored tiles used for a path(4x^2y^3)(3x^2y^2), is 12x^4y^5. Hence the correct option is 3,

Given the algebraic rule for determining the number of colored tiles ((4x2y3)(3x2y2)), we simplify this expression by multiplying the coefficients and then by adding the exponents for x and y (since they are the same base).

Multiply the coefficients: 4 x 3 = 12

Add the exponents for x: 2 + 2 = 4 (since x2  x  x2 = x2+2)

Add the exponents for y: 3 + 2 = 5 (since y3  x  y2 = y3+2)

Jeanette and Leslie are trying to solve this problem: A camp counselor has a list of 134 campers who signed up for art class. The counselor can place 8 students in each class. How many classes does the counselor need to have?

*Please Show Work*

Answers

All you have to do is divide.
134/8
Which is about 16 or 17
All you have to do is divide 134 with 8 because 134 is the total and the camp counselor is dividing the class to eight students each and the answer is 16 R6. Since there is a remainder (6 more students) the camp counselor has to make another class which would be 17 as the answer.

Ling uses 21 bananas to make 7 fruit smoothies. What is the unit rate that Ling uses for bananas per each smoothie? What is the unit rate? Explain how to use equivalent fractions to find the answer

Answers

21/7 divide num and denominator by 7 u will get
3/1 so 3 smoothie is answer
21/7=3/1(equivalent fraction)

Answer:

The unit rate that ling uses for bananas per each smoothie is (3/1) bananas per smoothie

Step-by-step explanation:

Ling uses 21 bananas to make 7 fruit smoothies. Total of bananas B = 21. Total of smoothies S =7.

The unit rate U is the relationships B divided by S.

U = B/S

U = 21 bananas / 7 smoothies

U = 21/7 Bananas per smoothies.

We can use the equivalent fractions to find the unit rate. 21 can be expressed as 7*3. 7 can be expressed as 7*1. We can simplify the number 7 in numerator and denominator.

U = (7*3)/(7*1)

U = 3/1.

Finally, the unit rate is 3/1 bananas per smoothie. 

Jodi went 54 miles on 3.5 gallons of gas, and she wants to know how far she can go on 9 gallons of gas. Which proportion would be useful to solve the problem?
A)
9
3
=
54
x
B)
9
54
=
x
3
C)
54
3.5
=
x
9
D)
54
9
=
3.5
x

Answers

54 (miles) / 3.5 (gallons) = x (miles) / 9 (gallons)

54/3.5 = x/9
80% of ____games is 32 games
sol'n:   0.80x = 32
                  x = 32/0.80
                  x = 40
Ans. 80% of 40 games is 32 games

75% of ____ peaches is 15 peaches
sol'n:    0.75x = 15
                   x = 15/0.75
                   x = 20
Ans:  75% of 20 peaches is 15 peaches

2 doctors is ____ % of 25 doctors
sol'n:   2 = 25x
           x = 2/25
           x = 0.08
Ans.:  2 doctors is 8 percent of 25 doctors

_____% of 200 miles is 150 miles
sol'n:    200x = 150
                  x = 150/200
                  x =0.75
Ans:     75% of 200 miles is 150 miles

60 minutes is 20% of ____ minutes
sol'n:     60 = 0.20x
              60/0.20 = x
               x = 300
Ans.: 60 minutes is 20% of 300 minutes

360 kilometers is 24% of ____ kilometers
sol'n:   360 = 0.24x
            360/0.24 = x
                x = 1500
Ans:   360 kilometers is 24% of 1500 kilometers

9 stores is 3% of ____ stores
sol'n:    9 = 0.03x
             9/0.03 = x
                x = 300
Ans.: 9 stores is 3% of 300 stores

7/2 as an improper fraction

Answers

it already is an improper fraction, nothing can be done witht this question

Well first pal u have to make 7/2 to a mixed fraction before improper so FOR now lets make this a mixed fraction.

set up the long division
divide 7 and 2 which is 3 with a remainder of 1
since that's true make it a mixed fraction
FOR NOW its 3 1/2 

Now that's its a mixed fraction lets make it into a improper one

3 * 2 + 1/2

Now that was easy so simplify it.
Now the answer would be 7/2.


So basically this is already an improper fraction, 7/2 is 3 1/2 expressed as a improper fraction.

Which number is equal to 10 to the 3rd power

Answers

Here is your answer

Just multiple...
10×10×10=1,000

Your answer is:
10^3=1,000
It would equal 1,000 because you would have to multiply 10 3 times 10 to the 3rd power = 10 x 10 x 10

Your picture of your family crest is 4.5 inches wide. You need a reduced copy for the front page of the family newsletter. The copy must fit in a space 1.8 inches wide. Which scale factor should you use on the copy machine to adjust the size of your pictures of the crest?

A) 2/5
B) 5/2
C) 1/2
D) 1/5

Answers

Answer:

The answer is : A 2/5

(I just finished taking the test)



The scale factor would be 2/5 to reduce the width from 4.5 inches to 1.8 inches.

What is a scale factor?

A scale factor is defined as the ratio of the scale of a given original object to the scale of a new object that is its representation but of a different size (bigger or smaller). For example, we can enlarge a rectangle with sides of 2 cm and 4 cm by multiplying each side by a number, say 2.

Given that your picture of your family crest is 4.5 inches wide. You need a reduced copy for the front page of the family newsletter. The copy must fit in a space 1.8 inches wide.

The scale factor will be calculated as,

Scale factor = Reduced size / Original size

Scale factor = 1.8 / 4.5

Scale factor = 0.4 or 2/5

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I need help with this asap right now please

Answers

it is b hope this helps sorry

A. 403

47x31=1457
34x31=1054

1457-1054=403

what is the volume of 20 grams of an object with a density of 55g/cm^3?

Answers

v=2.75 grams(answer)
divide the density by the mass

The volume of an object with a mass of 55g/cm³ and a mass of 20 grams is 27.5cm³.

What are mass, volume, and density?

Mass is the quantity of matter in a physical body.

The volume shows the amount of 3D space occupied by a closed object.

Density is mass per unit of volume.

Volume is only defined for 3-dimensional objects 2 dimensional objects have no volume.

We know volume is equal to mass/density.

Given an object has a density of 55g/cm³ and a mass is 20 grams.

∴ Volume = (55/20) cm³.

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Evaluate 12x−3y12x−3y when x=−14x=−14 and y=3y=3.

Answers

Well the first problem that i solve is you have to move 12 it will give you 
-3y power 12 - 3y + 12

Answer:

-12

Step-by-step explanation:

I think I got it right on Big Ideas

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