please help. 20 points Solve for t.

t + 19 = 45

Enter your answer in the box.
t =

Answer:

As a fraction, the answer is 5/2

In decimal form, the answer is 2.5

=====================================

Explanation:

The triangles are similar (AA similarity property) so we can solve the proportion below

x/3 = 5/6

6*x = 3*5

6x = 15

x = 15/6

x = 5/2

x = 2.5

Answer:

1.21d

Step-by-step explanation:

21% more = times 1.21

so Ron's class donated 1.21 times danny's class, therefore the expression for the amount ron's class donated in terms of danny's class is 1.21 d

Answer:

Pia

Step-by-step explanation:

The smaller the number of pencils in a bundle the greater the number of  bundles.

For example if the number of pencils each has is 60,

Then the number of bundles for Pia = 60/10 = 6,

and    ...................................................Gauri  = 60/12 = 5,

and   .....................................................Yasmin = 60/20 = 3.

Answer:

Pia

Step-by-step explanation:

Answer:

No each sandwich costs about 8.25, when multiplied it goes to $99 which is 14 dollars too much

Step-by-step explanation:

Answer:

The only correct answer is the second one, that the three in the tenths place is 10 times the amount in the 100ths place.

Step-by-step explanation:

The others are all wrong because the further the place, the less the value, so they cannot be ANY times the amount of a place closer to the decimal.

In the equation m = k + 3, m represents a dependent variable. Hence the correct option is 2.

In an equation, a variable is a placeholder for an unknown value.

"Dependent" means that its value depends on the value of another variable.

In this case, the value of m depends entirely on the value of k.

If you know the value of k, you can solve the equation for m and find its specific value.

k is the independent variable in this equation because its value is not determined by any other variable in the equation.

Hence the correct option is 2.

Complete question:

In the equation m = k + 3, m is the:

Independent variable

Dependent variable

Answer:

the answer is 58344

Step-by-step explanation:

Answer:

So you are going to take the total cost and divide it by the amount

Step-by-step explanation:

23.97/3=7.99

Hope that helps feel free to ask more questions

Brainliest??

Answer:

It will take 1.5 hours to paint the room together

Step-by-step explanation:

Martha can paint a room in 2 hours. Jamie can paint the same room in 6 hours.

Work done by Martha in 1 hour = [tex]\frac{1}{2}[/tex]

Work done by Jamie in 1 hour = [tex]\frac{1}{6}[/tex]

Work one together in 1 hour =  [tex]\frac{1}{2}+\frac{1}{6}[/tex]

Now take common denominator to add both fractions

LCD = 6, Multiply the first fraction by 3

[tex]\frac{1*3}{2*3}+\frac{1}{6}[/tex]

[tex]\frac{3}{6}+\frac{1}{6}[/tex]

Now add the numerators

[tex]\frac{4}{6}[/tex]

[tex]\frac{2}{3}[/tex]

To find total hours of painting together, we take reciprocal of 2/3

Time taken to paint together = [tex]\frac{3}{2}= 1.5[/tex]

It will take 1.5 hours to paint the room together

The nearest tenth of an hour, will it take them to paint the room together is 1.5 hours.

Given data:

Time taken by Martha to paint a room is, 2 hours.

Time taken by Jamie to pain the same room is, 6 hours.

Then work done by each of Martha and Jamie in 1 hour is given as,

[tex]W_{Martha}=\dfrac{1}{2}\\\\W_{Jamie}=\dfrac{1}{6}[/tex]

Total work done in 1 hour is given as,

[tex]W_{total}=W_{Martha} + W_{Jamie}\\\\W_{total}=\dfrac{1}{2} + \dfrac{1}{6}\\\\W_{total}=\dfrac{6+2}{12} \\\\W_{total}=\dfrac{8}{12}\\\\W_{total}=\dfrac{2}{3}[/tex]

To find total hours of painting together, we take reciprocal of 2/3.

Then, time taken to paint together is, 3/2 = 1.5 hours.

Thus, we can conclude in the nearest tenth of an hour, will it take them to paint the room together is 1.5 hours.

To learn more about it, please refer to the link:

https://brainly.com/question/15194302

Answer:

- 1

Step-by-step explanation:

Let the slope of one line be 's' , then according to the given condition that the  slope of second line is negative reciprocal of the first , We obtain the slope of the second line as [tex]\frac{-1}{s}[/tex].

So, the product of both the slopes is given by [tex]s\cdot \frac{-1}{s}=-1[/tex]

This shows that whatever the slopes may be if they are negative reciprocal of each other then their product will always be -1

Answer:

it should be a, im pretty sure but not completely

Step-by-step explanation:

Answer:

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

Step-by-step explanation:

First put 3x+y=5 in slope-intercept form (y=mx+b)

y=-3x+5

Give that the slope is -3 the perpendicular slope would be 1/3

now using the points (3.-7)

y+7=1/3(x-3) in point slope

y=1/3x-8 in slope intercept form

Put it in Slope - Intercept Form:

3x + y = -5

-3x         -3x

y = -3x - 5

Now plug in the ordered pair that is given:

(3, -7)

y = -3x - 5

-7 = -3(3) - 5

-7 = -9 - 5

-7 = -14

NO, it's false....

Hi, really really sorry if I am incorrect...

Answer: He would have 20

Step-by-step explanation:

well first you do 15/3=5 which means it was 5 per week =. Then, you multiply 4 x 5=20 to know how much he had over 4 weeks.

PLZ MARK ME AS BRAINIEST !!!!!!!

Answer:

I think the equation is 7l +5=60

Step-by-step explanation:

Answer:

Step-by-step explanation:

a) Given that a specific distance is approximately 6350000 miles.

To write this in scientific notation.  We know that for writing in scientific notation we must writte the given number as a positive number less than 10 x product of powers of n.

Hence this number

6350000 = 6.35 x1000000 = [tex]6.35x10^6[/tex] miles

b) Length of a fly = 0.18 inches.

To write this in scientific notation.  We know that for writing in scientific notation we must writte the given number as a positive number less than 10 x product of powers of n.

so 0.18 = 1.8([tex]1.8(10^{-1}[/tex]

c) Given that distance = 5.04x10^9 inches

To line up number of flies required

= [tex]\frac{5.04x10^9}{0.18} = \frac{504x10^9}{18}=28(10^9)\\Answer is\\28(10^9)[/tex]

In this mathematical problem, the distance of 63,500,000 miles is written in scientific notation as 6.35 x 10^7. The length of a fly, 0.18 inches, is expressed in scientific notation as 1.8 x 10^-1. To find the number of flies to cover the distance, the distance is first converted to inches (5.04 x 10^9), which when divided by the length of a fly results in 2.8 x 10^10, meaning approximately 28,000,000,000 flies would be needed.

The student's question involves the use of scientific notation and unit conversion in Mathematics.

https://brainly.com/question/14694084

#SPJ12

Answer: 4 cups of milk

=============================

Work Shown:

2 & 1/2 = 2 + 1/2 = 2+0.5 = 2.5

2.5 cups of milk makes 5 servings

x cups of milk makes 8 servings

Divide the cups of milk over the servings to get this proportion

2.5/5 = x/8

Cross multiply and solve for x

2.5/5 = x/8

2.5*8 = 5*x

20 = 5*x

5*x = 20

x = 20/5

x = 4

You need 4 cups of milk to make 8 servings

Answer:

the correct answer is $4018

Answer:

y = 7x + 1

Step-by-step explanation:

If the slope and coordinates have already been given, you can plug the values into the following equation of a line:

y - y1 = m(x - x1)

Where y1 is the y coordinate, so in this case 8,

x1 is the x coordinate which is 1

m is the slope, so 7:

y - 8 = 7(x - 1)

Expand the brackets:

y - 8 = 7x - 7

To isolate the y, we need to move the -8 over to the other side making it a positive 8:

y = 7x - 7 + 8

y = 7x + 1

So the equation of the line is y = 7x + 1

Answer:

2 hours

Step-by-step explanation:

if you can type 1 1/3 pages every 15 minutes than you can type 5 1/3 pages every hour. you divide 10 2/3 pages by how many pages Lee can type every hour and the result is 2 hours

Answer:

[tex]p^2(p+5)(p-2)[/tex]

Step-by-step explanation:

To begin factoring the expression [tex]p^4+3p^3-10p^2[/tex], we use the GCF or greatest common factor. The greatest common factor is the greatest number that will divide into two or more values. We start to find it by factoring each term:

[tex]p^4=p*p*p*p[/tex]

[tex]3p^3: 3*p*p*p[/tex]

[tex]-10p^2: -10*p*p[/tex]

Remember -10 can factor into smaller numbers but since it doesn't have common factors with the others, we've chosen to leave it as -10.

We notice the only common factors bare p*p or [tex]p^2[/tex].

We write in the form p^2(____+_____+_____). We find the inside of the parenthesis by dividing each term by p^2.

[tex]\frac{p^4}{p^2} =p^2[/tex]

[tex]\frac{3p^3}{p^2} =3p[/tex]

[tex]\frac{-10p^2}{p^2}=-10[/tex]

[tex]p^2(p^2+3p-10)[/tex].

We are not finished yet. We have a trinomial (3 terms) which also factors. We factor by splitting the middle term 3p into factors of -10 which add to 3.

--10 = 5 * -2

3p= 5p +-2p

We write [tex]p^2(p+5)(p-2)[/tex].

Answer:

5 a b (5 b + 1)

Step-by-step explanation:

Factor the following:

25 a b^2 + 5 a b

Hint: | Factor common terms out of 25 a b^2 + 5 a b.

Factor 5 a b out of 25 a b^2 + 5 a b:

Answer:  5 a b (5 b + 1)

Answer:

Population of town in Year 2010 is 3476.

Step-by-step explanation: Formula for the Population after t years is given by   P(t) = P (1-i/100)^n

        where P is initial population.

Here in question P is initial population.

If we compare the equation given in the question to the problem equation

we have P = 3476 , which is initial population.

Answer:

The population of the town in 2010 is 3476.

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

Answer:

The most appropriate answer option is A. A goal that's most important to you .

Step-by-step explanation:

The top item on a list of your life goals should be a goal that's most important to you.

One should not give a thought about what others want or expect from you but what you want for yourself and you think is the most important to you.

No matter how difficult or even impossible it may seem to you, you should always stay focused on it and never give up on it. With dedication and consistency, you will be able to manage and ultimately achieve it.

Answer:

2. y = x + 16; 0.21y = 0.27x + 2.88

Step-by-step explanation:

You have two conditions:

For the first condition,

16 + x = y     Transpose

(1)    y = x + 16

=====

For the second condition

  V₁c₁    +  V₂c₂  =  V₃c₃

16×0.18 + 0.27x = 0.21y

   2.88 + 0.27x = 0.21y               Transpose

(2)           0.21y = 0.27x + 2.88

The system of equations is y = x + 16; 0.21y = 0.27x + 2.88

Answer:

t=45

Step-by-step explanation:

-3=t/-15 step one multiply both sides by denominator

-3 x -15 = 45

Answer:t=45

Step-by-step explanation:

its hard to explain because i do it in my head

16^1/2 is the same thing as 2√16.

Simply multiply the result of √16 by 2 to get the answer.

√16 = 4

4 * 2 = 8

Answer:

Answer. Multiplying by 3/4 is the same as multiplying by 75%.

Step-by-step explanation:

Last option: Multiplying by 3/4 is the same as multiplying by 75%, because:

3/4=0.75 and

75%=75/100=0.75

then 3/4=0.75=75%