Answer:
1. x = {\frac{3}{2},\:x=-\frac{1}{5}}
2. x = 1
Step-by-step explanation:
Shii who knows..? Anyways you tryna give me brainliest answer?? ツ
3x/7-2=15
3x/7 = 17
3x = 119
x = 39.67
Answer:
Step-by-step explanation:
let the national average be x
11/100 * x = 11x/100
25.47 - x = 11x/100
100(25.47-x) = 11x
2547 - 100x = 11x
2547 = 11x + 100x
2547 = 111x
x = 2547/111
x = 22.945945945946
22.95