P = pizza and c =cakes

Last week: 8p + 13c = 134
Today: 28p + 4c = 220

Let’s take the formula for today and subtract 28p from each side to isolate the 4c.

4c = 220 - 28p

Now divide each side by 4

c = (220 - 28p)/4
Simplify to c = 55 - 7p

Now go to the formula for last week, substitute the c for 55-7p

8p + 13(55 - 7p) = 134
8p + 715 - 91p = 134

Simplify to 715 - 83p = 134

Let’s add 83p to each side.

715 = 134 + 83p

Subtract 134 from each side

581 = 83p

Divide each side by 83

p = $7

5 0

2 years ago

Hi anyone can help me do this question?

lakkis [162]

Answer:

6+18=24+16=40 Top one 3+3=6+8=14

Step-by-step explanation:

Easy by adding

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2 years ago

An adult ticket costs $5.25 and a child ticket costs $3.05. If $498.60 were collected for 100 tickets, how many child tickets we

lisabon 2012 [21]

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work is shown and pictured

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3 years ago

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Answer:

A on edu2020

Step-by-step explanation:

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3 years ago

I don't know what this is.​

I don't know what this is.