If 9a + 9b + 9c = 5, what is 72a + 72b + 72c

Question

Mathematics

Christina Miranda

11 August, 04:25

If 9a + 9b + 9c = 5, what is 72a + 72b + 72c

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Answers (2)

Know the Answer?

Yasmin · Answer 1

40

Step-by-step explanation:

9a + 9b + 9c = 5

We want 72a

72a/9a = 8 so multiply the first equation by 8

8 (9a + 9b + 9c) = 5*8

72a + 72b + 72c = 40

Cindy Lou Who · Answer 2

40

Step-by-step explanation:

Divide all three terms of 72a + 72b + 72c by 8. Result: 8 (9a + 9b + 9c).

We are told that 9a + 9b + 9c = 5. Thus, 8 (9a + 9b + 9c) = 8 (5) = 40