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denis23 [38]
3 years ago
8

PLEASEE HELPPPppppppp

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0

Answer:

Answer it yourself buddy (:

Step-by-step explanation:

Talja [164]3 years ago
7 0

Answer:

The answer is C

Step-by-step explanation:

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4 years ago
A chemical company makes two brands of antifreeze. The first brand is 70% pure antifreeze, and the second brand is 95% pure anti
Paul [167]
Let a be the amount needed of 70% pure antifreeze, and let b be the amount needed of 95% pure antifreeze.
0.7a + 0.95b = 180 * 0.9 .........(1)
a + b = 180 .............................(2)
b = 180 - a ..............................(3)
Plugging the expression for b in equation (3) into equation (1), we get:
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