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liubo4ka [24]
3 years ago
9

Alison’s age is 12 more than half of Sam’s age. Using S to represent Sam’s age, write an expression that represents Alison’s age

.

Mathematics
2 answers:
lys-0071 [83]3 years ago
8 0

Answer:

The answer is A

Step-by-step explanation:

because we want to find allisons age

UNO [17]3 years ago
6 0

Answer: the answer is C

Step-by-step explanation:

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Step-by-step explanation:

It is often convenient to solve a mixture problem by letting a variable represent the quantity of the higher-concentration contributor to the mix.

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We can let x represent the number of quarts of 80% solution needed. Then (20-x) is the number of quarts of 20% solution needed. The amount of salt in the final mix is ...

  0.80x +0.20(20-x) = 0.40(20)

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The teacher should mix 6 2/3 quarts of 80% solution with 13 1/3 quarts of 20% solution.

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