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5 votes
Evaluate 9(b+2) -5b for b=1/4

User Dennlinger
by
5.7k points

2 Answers

7 votes
When b=1/4, put b into the equation:

9(b+2) -5b
= 9 [(1/4)+2] -5(1/4)
= 9(2 1/4) - 5/4
= 9 (9/4) - 5/4
= 81/4 -5/4
= 76/4
= 19

Therefore, the answer is 19.

Hope it helps!
User Mvbentes
by
5.4k points
3 votes

Answer:

19

Explanation:

To solve this, we plug in the value 1/4 as b. We will get 9(1/4 + 2) - 5(1/4). 2 is 8/4, so 2 + 1/4 is 9/4, and 9 * 9/4 is 81/4. 5 times 1/4 is simply 5/4, and the answer is 81/4 - 5/4 = 76/4 = 19.

User Max Mikhaylov
by
5.2k points
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