Given:
To find:
The value of x for each equation.
Solution:
a)
Taking square root on both sides.
Square and square roots get canceled.
b)
Taking cube root on both sides.
cube and cube roots get canceled.
c)
Taking square root on both sides.
Square and square roots get canceled.
d)
Taking cube root on both sides.
cube and cube roots get canceled.
Divide 128 by 4. Then multiply that by 3 to get the answer for the weight of box A.
Answer:
A: Diane earns 200 + (10×20)= 400
B: Darryl earns (400-250)/20= $7.50 per hour