Answered

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A store is selling quarts of apple juice for
$2.80 and quarts of grape juice for $2.20. In
a week the store sold 15 quarts of the juice
and received $39 from those sales. How
many quarts of apple juice (a) and quarts
of grape juice (g) did the store sell?
a + g = 15
2.8a + 2.2g = 39
[?] apple juice [ ] grape juice
=

Sagot :

10 apple and 5 grape. Get a by itself in the first equation, you get a=15-g… plug that in for the a in the second equation 2.8(15-g)+2.2g=39, follow order of operations and you get g=5 so if 15 were sold then a must be 10
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