On Friday night, John ate pizza for dinner and had 1/2 of the pizza left over. On Saturday, he ate 1/3 of what was left. How much pizza did John eat on Sunday?

Answer

y = 3(2) = 6

Thus, she tutored for 2 hours and cleaned tables for 6 hours.

Explanation

These questions are all about writing down mathematically what they are saying in words. Use variables whenever there is an unknown, and try to write equalities based on what is said.

So, taking it one step at a time:

Eva is working two summer jobs,

Cool.

making $16 per hour and $8 per hour clearing tables.

I'm guessing this is $16/hr for tutoring, and $8/hr for clearing tables?

Last week Eva worked 3 times as many hours clearing tables as she worked tutoring hours

Let C = the number of hours Eva worked at clearing tables

Let T = the number of hours Eva worked at tutoring

Last week Eva worked C = 3 * T

and earned a total of $80.

The amount she earned at each place is:

8*C = money from clearing tables

16*T = money from tutoring

8*C + 16*T = 80

Solve a system of equations in order to determine the number of hours Eva worked tutoring last week, X, and the number of hours Eva worked clearing tables last week, Y,

Welp, I guess they wanted X and Y but it doesn't matter. From the equations above we can say:

8*C + 16*T = 80

C = 3*T

That should be enough to solve for:

C = ?

T = ?

Let x = # of hrs spent tutoring, y = # of hrs spent cleaning tables

We know she worked 3 times as many hours cleaning tables as she did tutoring, which implies:

3x = y

Also, her total earnings add up to $80, which implies:

16x + 8y = 80

This gives us the following system of equations:

3x = y

16x + 8y = 80

Let's make the substitution y = 3x into the 2nd equation:

16x + 8(3x) = 80

16x + 24x = 80

40x = 80

x = 2.

Next, plug in x = 2 into the first equation:

y = 3(2) = 6

Thus, she tutored for 2 hours and cleaned tables for 6 hours.

Answer:

B

Step-by-step explanation:

it would be b cause like when there like  a parentheses beside a number it  means to times so yea. and please mark braonliest

There are two ways to do this, the one that makes more logical sense and the faster one

You can first calculate how much is 25%. You do this by $24.99 × 25 ÷ 100

Since you know how much is "discounted", just minus the answer you get above with the original price ($24.99 - $6.2475)

The quicker way is to recognise that "original price" is always 100%. In other words, you can just do 100% - 25% and get 75%. Then, $24.99×75÷100 is your answer.

Answer:

2.

a. true.

b. false.

c. true.

d. true.

Answer:

tip: study

Step-by-step explanation:

Answer: 40% of 50 is 14

Step-by-step explanation:

The answer is A. 245 words  can he type in 7 minutes.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

Milo types 35 words per minute.

words can he type in 7 minutes is 35*7

                                                      =245

because I have to multiple the amount of words he can type in one minute by 7.

hence, The answer is A. 245 words  can he type in 7 minutes.

To learn more on multiplication click:

brainly.com/question/5992872

#SPJ2

Answer:

13/72

Step-by-step explanation:

Step-by-step explanation:

13/72

Answer:

x = -49/61

Step-by-step explanation:

I hope I helped!!

let me know if you want me to show the steps:)

Answer:

x = -49/61.

Step-by-step explanation:

6(10x+8)=2-(x+3)

60x + 48 = 2 - x - 3

60x + x = 2 - 3 - 48

61x = -49

x = -49/61

Answer:

i think its c

sorry if im wrong!

Step-by-step explanation:

Answer:

52%

Step-by-step explanation:

Covert fraction (ratio) 13/25 Answer:52%

Answer:

The multiples of 5 are (b.10,25,45,60)

Answer:

x=8

Step-by-step explanation:

7/x/2=28

2/7• 7x/2= 2/7•28

x=8

Answer:its equal to for ?

Step-by-step explanation:..

Answer:

domain is 6,5,4,3

range is 8,9,10,11

1/2 and one 2 can be multiplied to 1 so the equation turns to:

2^2+7=4+7=11

Hope this helped if you have any more questions please ask in the comment section.

9514 1404 393

Answer:

  (a)  The lines are parallel

Step-by-step explanation:

A graph helps show the lines are parallel.

Answer:

There are 86 acres of old-growth trees.

Step-by-step explanation:

Answer/Step-by-step explanation:

Decompose each shape, find the volume of each cuboid, and add both volumes you get together.

Recall: volume of cuboid = L*W*H

4. Volume of cuboid 1: L*W*H = 12*10*4 = 480 ft³

Volume of cuboid 2: L*W*H = 12*3*5 = 180 ft³

Volume of the shape = 480 + 180 = 660 in.³

5. Volume of cuboid 1: L*W*H = 11*2*5 = 110 yd³

Volume of cuboid 2: L*W*H = 10*4*2 = 80 yd³

Volume of the shape = 110 + 80 = 190 yd³

6. Volume of cuboid 1: L*W*H = 8*3*2 = 48 in.³

Volume of cuboid 2: L*W*H = 14*2*3 = 84 in.³

Volume of the shape = 48 + 84 = 132 in.³

7. Volume of cuboid 1: L*W*H = 5*3*2 = 30 yd³

Volume of cuboid 2: L*W*H = 6*2*5 = 60 yd³

Volume of the shape = 30 + 60 = 90 yd³

8. Volume of cuboid 1: L*W*H = 12*2*18 = 432 in.³

Volume of cuboid 2: L*W*H = 18*5*6 = 540 in.³

Volume of the shape = 432 + 540 = 972 in.³

9. Volume of cuboid 1: L*W*H = 13*11*4 = 572 ft³

Volume of cuboid 2: L*W*H = 13*6*7 = 546 ft³

Volume of the shape = 572 + 546 = 1,118 ft³

Answer:

Step-by-step explanation:

Answer:

0.004

Step-by-step explanation:

Answer:

0.004

Step-by-step explanation:

Answer:

Width = x

Length = 3x+4

Step-by-step explanation:

Equations

Let's call x = width of the rectangle.

We know the length is 4 feet longer than 3 times the width, thus:

length = 3x + 4

Dimensions of the rectangle:

Width = x

Length = 3x+4

Answer:

1.6

Step-by-step explanation:

1.6!

Step-by-step explanation:

Answer:

Not possiblie

Step-by-step explanation:

I took the test

Answer:

not possible

Step-by-step explanation:

i also took the test ^^