Answer:

Step-by-step explanation:
We are to find an equivalent expression for:

Step 1: Combine the terms in the numerator into one fraction. Do the same for the denominator.

Step 2: Write on a straight line and simplify

The correct option is B.

Move the "x" terms to the right


Divide both sides by 5:

Lets use a rule of three simple with direct proportion to solve:
20 boxes -----> 15 min
100 boxes ----> x
x = (100)(15)/20
x = 75
therefore it takes 75 mins to stack 100 boxes
If we use fractions to solve:
15/20 = x/100
and solve for x.
20/15 = 100/y
solve for y
Answer:
ok
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
D