150 × 100 = 15,000
90x = 15,000
90 ÷ 90 = 1
15,000 ÷ 90 = 166.6%
I don’t know of the problem wants you to round but the percent would be either 166.6% or 167% (if rounded).
Divide the number that visited the gorilla by the total students at the zoo then multiply by 100
90/150 = 0.6
0.6 x 109 = 60%
The answer is 60%
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