Answer:
14.99
Step-by-step explanation:
20.02=50-2t
20.02-50= -2t
-29.98= -2t
Park Crest Middle School has a population of about 400 8th graders. Parkcrest is one of several middle schools in the state which has a total of 806, 240 8th graders. Use powers of 10 to estimate about how many times greater the States population of eighth-graders is compared to the number of 8th graders at Park Crest Middle School.
Answer:
[tex]8.05 * 10^{5}[/tex]
Step-by-step explanation:
Thinking process:
the population of Park Crest Middle School = 400 children
The population in the state = 806, 240 children
The difference:
[tex]806240 - 400\\= 805840[/tex]
Expressing the difference in standard form gives:
8.05 × 10⁵
There are 225 dozen cookies in the bakery. How many cookies are there?
Answer:
2700 cookies.
Step-by-step explanation:
A dozen is a grouping of twelve, that is a dozen = 12.
If there are 225 dozen cookies in the bakery, then there are
[tex]225\cdot 12=2700[/tex] cookies in the bakery.
there are 2700 cookies in total
Since there are 225 dozen cookies in the bakery, we need to determine the total number of cookies.
To convert dozen to individual units, we multiply the number of dozens ( 225 ) by 12, as there are 12 cookies in each dozen :
225 dozen * 12 cookies / dozen = 2700 cookies
Therefore, there are 2700 cookies in total. By multiplying the number of dozens by 12, we account for the fact that each dozen contains 12 cookies. This calculation allows us to determine the precise quantity of cookies in the bakery.
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What multiplication sentence does the model represent?????
Answer:
I Think It Is 0.12*2
Because I See Both Of The Shadings Colored Differently And Each One Has 12 That Is The Reason For Me Thinking This.
Mrs Wong is going on a trip. She has 14 books that she hasn’t read yet but she wants to bring only 2 on the trip. In how many ways can she choose 2 books to bring on the trip
In combinatorics, we use the combination formula to calculate the number of ways Mrs. Wong can choose 2 books out of 14. The result is 91 ways.
Explanation:The subject of this question is combinatorics, a topic in mathematics dealing with combinations of objects belonging to a finite set in accordance with certain constraints, such as those specified in this question. In this case, Mrs. Wong has 14 special objects (books) and wants to choose 2 out of them.
We use the combination formula in this scenario. The combination formula is given by C(n, r) = n! / [(n-r)!*r!], where n represents the total number of objects, r is the number of objects to choose, and '!' denotes factorial.
Substituting n as 14 and r as 2 into the formula, we get: C(14,2) = 14! / [(14-2)!*2!] = 91.
Therefore, Mrs. Wong can choose 2 books out of 14 in 91 different ways.
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The question is about combinations in mathematics. Using the formula for combinations, we find that Mrs. Wong can choose 2 books out of 14 in 91 different ways.
Explanation:This is a problem of combinations in mathematics. Mrs. Wong can choose two out of 14 unread books in a certain number of ways, and we're tasked to find that number.
Considering that order of selection does not matter, we can use the formula for combination: nCr = n! / r!(n-r)!. Here, 'n' is the total number of items, 'r' is the items to be chosen.
So the combinations she can make, denoted as 14C2, can be calculated like this:
14C2 = 14! / 2!(14-2)! = (14*13) / (2*1) = 91 ways
Therefore, Mrs Wong can choose 2 books out of 14 in 91 ways.
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share $500.00 between four children in the ratio 2:3:5:10.
the cheap answer is, we divide 500 by (2+3+5+10) and then distribute accordingly.
[tex]\bf \cfrac{500}{2+3+5+10}\implies \cfrac{500}{20}\implies \cfrac{25}{1}\implies 25 \\\\\\ \stackrel{2\cdot 25}{2}~~:~~\stackrel{3\cdot 25}{3}~~:~~\stackrel{5\cdot 25}{5}~~:~~\stackrel{10\cdot 25}{10}\qquad \implies \qquad 50~~:~~75~~:~~125~~:~~250[/tex]
A large container has a maximum capacity of 64 ounces The container is filled with 8 ounces less than its maximum capacity
The percentage of its capacity is the large container filled will be 87.5%.
What is mean by Percentage?
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
To Calculate the percent of a number , divide the number by whole number and multiply by 100.
Given that;
A large container has a maximum capacity of 64 ounces.
And, The container is filled with 8 ounces less than its maximum capacity.
Now,
Calculate the percent of its capacity is the large container filled as;
Percent = (64 - 8) / 64 x 100
= 56/64 x 100
= 87.5%
Thus, The percentage of its capacity is the large container filled will be 87.5%.
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The complete question is this;
A large container has a maximum capacity of 64 ounces. The container is filled with 8 ounces less than its maximum capacity. To what percent of its capacity is the large container filled?
how do you solve -3y-8=25
Jay is 4 years younger than three times Tamia's age. Jay is 20 years old. How old is Tamia?
Final answer:
To find Tamia's age, an equation was set up based on the relationship between Jay and Tamia's ages. Jay is 20 years old and 4 years younger than three times Tamia's age. Solving the equation shows that Tamia is 8 years old.
Explanation:
Jay is 4 years younger than three times Tamia's age. Given that Jay is 20 years old, we can use this information to find out how old Tamia is. Let's denote Tamia's age as T. The relationship between their ages can be represented by the equation: Jay's age = 3 × Tamia's age - 4. Since Jay's age is 20, we can substitute this into the equation, giving us 20 = 3T - 4.
To solve for T, we first add 4 to both sides of the equation, which gives us 24 = 3T. Next, we divide both sides by 3 to find Tamia's age, resulting in T = 8. Therefore, Tamia is 8 years old.
This problem was solved by setting up an equation based on the relationship described between Jay and Tamia's ages, then using basic algebraic steps to solve for Tamia's age.
in the figure above CD is the perpendicular bisector of AB. three students explained how they proved ADC is congruent to BDC
who's explanation is incorrect??
Answer:
All explanations are correct
Step-by-step explanation:
In triangle ABC, CD is the perpendicular bisector of AB, thus using ΔADC and ΔBDC,
AC=BC ( Since CD is perpendicular to AB, therefore C is equidistant from both A and B)
∠ADC=∠BDC=90°(CD perpendicular AB)
CD=CD( Reflexive property)
therefore, by SAS rule of congruency,
ΔADC≅ ΔBDC,
Also, In the same triangles, AC=BC ( Since CD is perpendicular to AB, therefore C is equidistant from both A and B)
CD=CD( Reflexive property)
AD=BD (D is the midpoint and divides AB into two equal halves)
Thus, by SSS rule of congruency,
ΔADC≅ ΔBDC,
Thus, all the three explanations are correct.
In the given case, we can conclude that All explanations are correct
In triangle ABC, let CD be the perpendicular bisector of AB. We can use the properties of triangles to demonstrate that ΔADC is congruent to ΔBDC.
AC=BC: This holds true because CD is perpendicular to AB, making point C equidistant from both A and B.
∠ADC=∠BDC=90°: Since CD is perpendicular to AB, both angles ADC and BDC are right angles.
CD=CD: This is a reflexive property, stating that any line segment is equal to itself.
By applying the SAS (Side-Angle-Side) rule of congruency using the above properties, we can conclude that ΔADC is congruent to ΔBDC.
Furthermore, we can establish that in these congruent triangles:
AC=BC (since C is equidistant from A and B due to CD being perpendicular to AB).
CD=CD (reflexive property).
AD=BD (as D is the midpoint of AB).
Hence, using the SSS (Side-Side-Side) rule of congruency, we can also conclude that ΔADC is congruent to ΔBDC.
Therefore, all three explanations correctly demonstrate the congruence of these triangles.
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What is the unit price of 3 gallons of juice for 6.99
Answer:
The unit price is $2.33 per gallon
Step-by-step explanation:
To find the unit price, we take the price and divide by the amount
$6.99 / 3 gallons
$2.33 per gallon
The unit price is $2.33 per gallon
what is the
the sum of the multiples of 35 rom 36 to 153
Answer:
70, 105, 140
Step-by-step explanation:
Bradley wanted a blue gumball and a green gumball from a vending machine. There were 15 blue gumballs, 12 yellow gumballs, 2 green gumballs, and 16 purple gumballs. How many times would you expect to get a blue gumball or green gumball if a gumball was taken out 250 times?
Answer: Bradley would expect 94 times to get a blue or green gumball.
Step-by-step explanation:
Since we have given that
Number of blue gumballs = 15
Number of yellow gumballs = 12
Number of green gumballs = 2
Number of purple gumballs = 16
Total number of all gumballs = 45
Probability of getting either a blue gumball or green gumball be
[tex]\frac{15}{45}+\frac{2}{45}=\frac{17}{45}[/tex]
So, Expectation of getting a blue gumball or green gumball if a gumball was taken out 250 times :
[tex]\frac{17}{45}\times 250=94.4[/tex]
Since we know that it must be less than 94.4.
So, the nearest smallest integer will be 94 times .
Hence, Bradley would expect 94 times to get a blue or green gumball.
Three geometric sequences are given below.
Sequence A: 160,40,10,2.5,...
Sequence B: -21,63,-189,567,...
Sequence C: 8,12,18,27,....
Order the sequences from least common ratio to the greatest common ratio.
Answer:
A C B
Step-by-step explanation:
In sequence A. the numbers are being divided by 4.
In sequence B. the numbers are being multiplied by -3
In sequence C. the numbers are being add by 4
So the ratio from least to greatest would be A C B
Answer:
Sequence B, Sequence A, Sequence C
Step-by-step explanation:
Common ratio of a geometric sequence is the ratio of a term and its previous term of the sequence.
Thus, the common ratio of the sequence A: 160,40,10,2.5,...
[tex]r_1=\frac{40}{160}=\frac{1}{4}[/tex]
The common ratio of the sequence B: -21,63,-189,567,...
[tex]r_2=\frac{63}{-21}=-3[/tex]
The common ratio of the sequence C : 8,12,18,27,....
[tex]r_3=\frac{12}{8}=\frac{3}{2}[/tex]
Since, -3 < [tex]\frac{1}{4}[/tex] < [tex]\frac{3}{2}[/tex]
Thus,
[tex]r_2 < r_1 < r_3[/tex]
Hence, the order the sequences from least common ratio to the greatest common ratio is,
Sequence B, Sequence A, Sequence C
Multiply. Express your answer in simplest form. 7/10 × 2/5
Answer:
7/10 x 2/5 = 14/50 = 7/25
Step-by-step explanation:
mutipily 7 and 2 that gives you 14 and mutilpily 10 and 5 that gives you 50 = 14/50. In simplest form the answer is 7/25.
Answer:
7/10 x 2/5 = 14/50 = 7/25
Step-by-step explanation:
mutipily 7 and 2 that gives you 14 and mutilpily 10 and 5 that gives you 50 = 14/50. In simplest form the answer is 7/25.
A motorcycle can travel 70 miles per gallon. Approximately how many gallons of fuel will the motorcycle need to travel 60 km?
[1 mile = 1.6 km]
a- 0.2
b- 0.5
c- 0.8
d- 1.4
Answer:
We have the following given
mileage = 70 miles per gallon
distance = 60 km
Required: amount of fuel in gallons
First, we must convert the distance to miles, so
60 km (1 mi/1.6 km) = 37.5 mi
So, the amount of fuel is
37.5 mi / (70 mi/gal) = 0.54 gallon
Answer:
B
Step-by-step explanation:
70 miles * [1.6 km/mile] = 112 km
Notice when you multiply by km/mile by miles the miles cancel out.
1 gallon will get 112 km
x gallon will get 60 km
1/x = 112/60 cross multiply1 * 60 = 112 * x divide by 11260/112 = x switchx = 60/112 Do the divisionx = 0.54 Which rounds to 0.5Waterworld properties to rewrite each expression as an expression that does not use parentheses (b + 3) + 6
Answer:
b+9
Step-by-step explanation:
(b + 3) + 6 = b + (3 + 6) = b + 9
can some one help me. Solve this equation.
[tex]\bold{Given : 2^2^x^-^2 - 2^x^-^1 = 2^x - 2}[/tex]
[tex]\bold{\implies (2^2^x) (2^-^2) - (2^x)(2^-^1) = 2^x - 2}[/tex]
[tex]\bold{\implies \frac{(2^2^x)}{(2^2)} - \frac{(2^x)}{(2^1)} = 2^x - 2}[/tex]
[tex]\bold{\implies \frac{(2^2^x)}{4} - \frac{(2^x)}{2} = 2^x - 2}[/tex]
[tex]\bold{\implies \frac{[2^2^x - (2^x)(2)]}{4} = 2^x - 2}[/tex]
[tex]\bold{\implies [2^2^x - (2^x)(2)] = (4)(2^x) - 8}[/tex]
[tex]\bold{\implies 2^2^x - (2^x)(2) - (4)(2^x) + 8 = 0}[/tex]
[tex]\bold{\implies (2^x)^2 - (2^x)(6) + 8 = 0}[/tex]
[tex]\bold{Let\;us\;take : (2^x) = Z}[/tex]
[tex]\bold{\implies Z^2 - 6Z + 8 = 0}[/tex]
[tex]\bold{\implies Z^2 - 4Z - 2Z + 8 = 0}[/tex]
[tex]\bold{\implies Z(Z - 4) - 2(Z - 4) = 0}[/tex]
[tex]\bold{\implies Z = 4\;\;(or)\;\;Z = 2}[/tex]
[tex]\bold{But : Z = 2^x}[/tex]
[tex]\bold{\implies 2^x = 4\;\; (or) \;\; 2^x = 2}[/tex]
[tex]\bold{\implies 2^x = 2^2\;\; (or) \;\; 2^x = 2^1}[/tex]
[tex]\bold{\implies x = 2\;\;(or)\;\; x = 1}[/tex]
Laura borrows 10000 for 5 years at 6.5% rate. How much will the interest be after 3 years?
SUPER EASY AND REALLY URGENT!!
Answer:
is your answer $3250
Step-by-step explanation:
so we dont know our I (interest) but :
P (principal) = 10000
R (rate) = 6.5% we'll have to turn it into the decimal which is 0.065
T (time) = 5 years
and our basic formula of finding I is I = PxRxT so :
I = 10000 x 0.065 x 5
I = 3250
45 POINTS!
PLEASE HELPPPPPPPPPPPPPP!
Answer:
This is a direct variation where the constant of variation is 5/9
Step-by-step explanation:
The equation for direct variation is y = kx
5x-9y =0
Lets try to get this equation in the above form
Add 9y to each side
5x-9y +9y = 9y
5x = 9y
Divide each side by 9
5/9 x = 9y/9
5/9x = y
This is in the form y = k x where k =5/9
convert angle 180° to radians
Answer:
180 degrees in radians is π
Step-by-step explanation:
0° = 0 radians
90°= π/2
180 °= π
270°= 3π/2
360° = 2π
and so on
Say that you own property with a market price of $74,000. The state tax assessors have given it an assessed value of 48% of that amount. If your state’s property tax rate is 0.031, how much do you owe in property tax, to the nearest dollar? a. $1,101 b. $2,294 c. $35,520 d. $1,193
Answer:
A
Step-by-step explanation:
74,000 x .48 = 35520. 35520 is the amount of property you have to pay for.
35520 x 0.031 = 1,101.12. 1.101.12 is the amount you owe in property tax.
The amount owed in property tax to the nearest dollar is $1,101
What is the market price of a property?In real estate management, the market price is the price at which a buyer is willing to pay and which the seller is as agreed to receive at the present time.
From the parameters given:
The market price = $74000The state tax on the property = 48% = 0.48From the property, the required amount of property to be paid for is:
= $74000 × 0.48
= $35520
If the state property tax rate is 0.31, the amount owe in property tax is:
= $35520 × 0.031
= $1,101
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Can someone please help
Suppose 6 quarts of milk cost $5.10. Use the unit price (price per quart) to determine how much 5 gallons of milk cost?
A $17.00
B $34.00
C $8.50
D $0.85
E $4.25
Answer:
Answer is: A
Step-by-step explanation:
Because it is.
Answer:
A. $17.00
Step-by-step explanation:
$5.10 for 6 quarts.
Unit cost: ($5.10)/(6 qt) = $0.85/qt
Price for 5 gallons:
1 gallon = 4 quarts
5 gallons = 5 * 4 quarts = 20 quarts
Price for 5 gallons = unit price * number of quarts
Price for 5 gallons = $0.85/qt * 20 qt = $17.00
Answer: A. $17.00
Caroline ran 15 miles in 5 days. She ran the same distance each day. Write and solve an equation to determine the number of miles she ran each day
Answer:
15/5= x. x=3.
Step-by-step explanation:
Miles ran in total divided by days spent running equals miles ran each day.
Leonard paid $35 registration fee to join the gym. He pays $10 each month.
How much will he pay to use the gym for 6 months?
find the square root of -36
[tex]i=\sqrt{-1}-\text{the imaginary number}\\\\\sqrt{-36}=\sqrt{(36)(-1)}=\sqrt{36}\cdot\sqrt{-1}=\boxed{6i}[/tex]
find the area of washers whose external and internal diameter are 1.2m and 0.9m
Answer:
0.49 m²
Step-by-step explanation:
The area (A) is calculated using A = πr² ( r is the radius )
A = external area - internal area
external radius = [tex]\frac{1.2}{2}[/tex] = 0.6
internal radius = [tex]\frac{0.9}{2}[/tex] = 0.45
A = π(0.6² - 0.45²)
= π(0.36 - 0.2025) = 0.1575π ≈ 0.49 m²
Final answer:
The area of the washers is 0.49m².
Explanation:
To find the area of the washers, we need to find the areas of the outer and inner circles and then subtract the smaller area from the larger one. The area of a circle is given by the formula A = πr², where r is the radius of the circle. In this case, the external diameter is 1.2m, so the radius is half of that, or 0.6m. The area of the outer circle is A₁ = π(0.6)² = 1.13m². Similarly, the radius of the inner circle is 0.45m, and the area of the inner circle is A₂ = π(0.45)² = 0.64m². Finally, the area of the washer is the difference between the two areas: A = A₁ - A₂ = 1.13m² - 0.64m² = 0.49m².
Given the equation y = 3x − 4, what is the value of y when x = 4?
A) 2
B) 4
C) 8
D) 10
Answer:
C) 8
Step-by-step explanation:
y = 3x-4
Substitute x=4 into the equation
y = 3*4 -4
y = 12-4
y=8
Put the value of x = 4 to the equation y = 3x - 4:
[tex]y=3(4)-4=12-4=8[/tex]
Answer: C) 8Lucy cuts 4 squares with side length x in. from the corners of a 12 in. by 18 in. cardboard rectangle. She folds the remaining cardboard to make a tray that is x in. high. Write and simplify a polynomial function for the volume V of the tray in terms of x.
please help, i am loosing a braincell each day
Answer:
Volume of tray =[tex]4x^{3} -60x^{2} +216x[/tex]
Step-by-step explanation:
The Dimensions of rectangular cardboard is given by 12 inches by 18 inches
Length of the rectangular cardboard = 18 inches
Width of the rectangular cardboard = 12 inches
if the square of sides x inches is cut from each corner of the rectangular cardboard and folded to make a tray, then we have
Length of the tray = length of cardboard - 2 (side of the square )
= [tex]18-2x[/tex]
Width of the tray = width of cardboard - 2( side of square)
= [tex]12-2x[/tex]
height of tray = sides of square
= x
volume of tray = Length × width × height
Volume of tray = [tex]x(18-2x)(12-2x)[/tex]
first we multiply (12-2x) and (18-2x)
Volume of tray =[tex]x(18(12-2x)-2x(12-2x))\\[/tex]
=[tex]x(216-36x-24x+4x^{2})[/tex]
=[tex]x(4x^{2}-60x+ 216)[/tex]
=[tex]4x^{3} -60x^{2} +216x[/tex]
Hence the volume of tray =[tex]4x^{3} -60x^{2} +216x[/tex]
The volume of the Tray is given by the equation [tex]4x^3-60x^2+216x[/tex] and this can be determined by using the given data.
Given :
Lucy cuts 4 squares with side length x in. from the corners of a 12 in. by 18 in. cardboard rectangle. She folds the remaining cardboard to make a tray that is x in.If the square is cut from each corner of the cardboard and folded to make a tray, then according to the given data:
Tray length = 18 - 2x
Tray width = 12 - 2x
Tray height = x
Now, the volume of the tray is given by the expression:
The volume of Tray = [tex]x(12-2x)(18-2x)[/tex]
Simplify, the above expression.
[tex]\rm Volume = (12x - 2x^2)(18-2x)[/tex]
[tex]\rm Volume = 216x -24x^2-36x^2+4x^3[/tex]
[tex]\rm Volume = 4x^3-60x^2+216x[/tex]
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Brian rented a book from the book shop.The shop charges $2 for the first day and $3 from the second day onwards.Brian took more then 2 days to return the book and he paid $35 while returning the book.How many days did he keep the book with him?
Brian rented the book for 12 days.
Brian rented a book with the condition that the shop charges $2 for the first day and $3 from the second day onwards. He paid a total of $35 upon returning the book. To determine how many days he kept the book, we must calculate the cost for each day and subtract the initial $2 from the total amount paid.
Steps to Calculate the Number of Days:
Subtract the first day's charge from the total amount: $35 - $2 = $33.Divide the remaining amount by the daily charge starting from the second day: $33 / $3 = 11 days.Add the first day to the result: 11 days + 1 day = 12 days.Therefore, Brian kept the book with him for 12 days.
Which graph is the graph of y - 1 = 0 ?
Answer:
The answer is A because if you subtract the 1 you get y=1 and the line of A is at the point 1 on the y-axis
Step-by-step explanation: