Question

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Question:

Evaluate. Show all work for full credit.

If c = 30 and d = 8, then 2c + 4d = ?

Answer 1

The answer is 92. First substitute in 30 for c and multiply it by 2, and you get 60. Then, substitute in 8 for d and multiply it by 4 to get 32. Add 60 + 32 and it equals 92.

Answer 2

2c + 4d = 92

substitute the given values into the expression and evaluate

2c + 4d = (2 × 30) + (4 × 8) = 60 + 32 = 92