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agasfer [191]
3 years ago
5

David and John are sharing a pizza. The pizza is cut into twelve pieces. David ate a quarter of the pizza. John ate 4 pieces. Ho

w many pieces are left?
Mathematics
2 answers:
Paladinen [302]3 years ago
6 0
Since david ate a quarter of the pizza he ate 3 slices. John ate 4 slices. 4+3=7 , 12-7=5 pieces of pizza are left
Kamila [148]3 years ago
3 0

Answer:

David at 1/4 of the pizza: 1/4(12)= 3 pieces

John ate 4 pieces

12-(3 + 4)= 12 - 7 = 5 pieces of pizza left

Step-by-step explanation:

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If Taylor has 2 times as many nickels as quarters and they have a combined value of 245 cents, how many of each coin does he hav
Goryan [66]

Answer:

Taylor has 14 Nickels and 7 Quarters

Step-by-step explanation:

A nickel is equivalent to 5 cent while a quarter is equivalent to 25 cents.

If the number of nickels Taylor has is 2x then the number of quarters is x

Given that the total value is 245 cents,

5(2x) + 25x = 245

10x + 25x = 245

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Step-by-step explanation:

8 0
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You buy 2 shirts and 1 pair of pants for $34. Your friend buys 3 shirts and 3 pairs of pants for $69. What is the price of 1 shi
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You buy 3 shirts and 1 pair of pants for $32. Your friend buys 2 shirts and 3 pairs of pants for $40. How much did each item cost?

First let’s define a shirt as X and pants as Y!

In the first scenario, the equation will be 3X + Y =$32

In the second scenario, the equation will be 2X + 3Y = $40  

Now because we have two different variables (X & Y) let’s solve for one of them (Ex: Y) to simplify the equations!

3X + Y= $32—> subtract 3X on both sides of the equation  

-3X.        - 3X

Net result: Y= 32- 3X

Now we can insert this into the second equation 2X + 3Y = $40 in order to solve for X variable  

2X + 3(32-3X) = $40

2X + 96 - 9X = $40 —> simplify the equation  

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-7X = -56 —> divide both sides by -7  

X= 8  

Now reinsert 8= X into 3X + Y = $32

3(8) + Y = $32

24+ Y = $32 —> substract 24 from both sides

y = 8

ANSWER: X= 8, Y= 8

7 0
2 years ago
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