Ahmed is taking orders for lunch. A slice of pizza cost $2.9 and a chicken sandwich costs $3.9. He collects $25.3 for the group of 7 people.

Let x=number of pizza orders. Let y=number of chicken orders

Question

Sara Edwards

Mathematics

29 August, 12:15

Ahmed is taking orders for lunch. A slice of pizza cost $2.9 and a chicken sandwich costs $3.9. He collects $25.3 for the group of 7 people.

Let x=number of pizza orders. Let y=number of chicken orders

+1

Answers (1)

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Tripp · Answer 1

X+Y=7

2.9X+3.9Y=25.3

Get X by itself: X=7-Y

Substitute for X: 2.9 (7-Y) + 3.9Y=25.3

Time it out: 19.5-2.9Y+3.9Y=25.3

Add the Ys: 19.5+Y=25.3

Subtract from both sides: Y=5

So, X is equal to two orders, and Y is five.

Ahmed is taking orders for lunch. A slice of pizza cost $2.9 and a chicken sandwich costs $3.9. He collects $25.3 for the group of 7 people.Let x=number of pizza orders. Let y=number of chicken orders

Ahmed is taking orders for lunch. A slice of pizza cost $2.9 and a chicken sandwich costs $3.9. He collects $25.3 for the group of 7 people.

Let x=number of pizza orders. Let y=number of chicken orders