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Inessa05 [86]
3 years ago
15

A store recived a delivery that consists of x boxes that weight 30 pounds each and y boxes that weight 20 pounds each. There are

64 total boxes in the delivery and they have combined weight of 1400 pounds .
Enter the number of boxes in the delivery that weight 20 pounds.

______boxes
Mathematics
1 answer:
seraphim [82]3 years ago
8 0

let no of x box=q

let no of y box=p

30q+20p=1400

3q+2p=140

2q+2p+p=140

128+q=140(q+p=128)

q=12

p=52

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The area of a square is 49 square meters. How long is each side?
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