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Evgen [1.6K]
3 years ago
8

Forty gallons of a 60% acid solution is obtained by mixing a 75% solution with a 50% solution. How many gallons of each solution

must be used to obtain the desired mixture?
Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0
Sry but I don’t know the answer I just have two answer 2 questions so I don’t have to watch a video
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It says that the triangles are congruent (same size). Also, a triangle's angles add up to 180 degrees. In both of these triangles, one angle is 90° and another angle is 52°. The other angle is 180°-90°-52°=38°.

Solve these equations to find x and y: 2x+18=38, 3y+11=38

2x+18=38\\2x=20\\x=10

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Use distributive property to simplify. 10(-8s-k) just need to check if -80s-10k is correct.
Nitella [24]
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What’s the answer to this algebraic expression? The distance Darren ran plus 4 more miles
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