If a : b = 5 : 2 and a = -20, then what is the value of "(-b)"? Ops: A. 8 B. 12 C. 16 D. 6
Question
Solution 1
The problem states that the ratio of a to b is 5 to 2, or a/b = 5/2.
We also know that a = -20.
We can substitute -20 for a in the ratio to find the value of b.
So, -20/b = 5/2.
To solve for b, we can cross-multiply to get -40 = 5b.
Then, divide both sides by 5 to get b = -40/5 = -8.
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