Answer:
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Step-by-step explanation:
Orange juice cups = 15
Mango juice cups = 6
Hence, No. of Orange juice cups needed to make 21 cups = 15 and no. of Mango juice cups needed to make 21 cups = 6
the answer is c
221
Make a proportion.
182/14 = x/17
182 x 17 divided by 14 is 221
x=-3 and y= -6
we have
6=-4x+y and -5x-y = 21
6+4x=y we substitute y in the second equation
-5x-(6+4x)=21
-9x-6=21
-9x=27
x=-3
we substiture x in the second
-5(-3)-y =21
15-y=21
15-21=y
y=-6