Answer:
x² is equal to 289 so x is obviously the square root of 289 which is 17
Answer:
x = 13
Step-by-step explanation:
Step 1: Define
f(x) = (x - 1)/2
f(x) = 6
Step 2: Substitute and solve for <em>x</em>
6 = (x - 1)/2
12 = x - 1
x = 13
15%=3
5%=1
5(20)=100
1(20)=20
So, there are 20 students in the class.
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