Solving Equations Using Multiplication and Division

If a number is divided by eleven, the solution is two-fifths. What is the number?

4 2/5

What should be done to both sides of the equation in order to solve -5 m = -40?

Divide by -5.

What is the solution to -5 m = -40?

m = 8

What is being done to the variable in the equation -5 m = -40?

It's being multiplied by -5.

What should be done to both sides of the equation in order to solve n/4 = -12.4?

Multiply by 4.

The cost for a package of five plain T-shirts is $11.35. If c represents the cost of each individual T-shirt, the equation 5 c = 11.35 can be used to find the value of c. Solve for c.

c = $2.27

What is the solution to n/4 = -12.4?

n = -49.6

Leon has to drive 36 miles to work. If he can average a speed of 48 miles per hour, about how long does it take him to get to work each day?

three-fourths of an hour

Solve for u . -24 = u ÷ 6

-144

Solve for b . -9 b = 27

-3

Solve for h . -98 = -7 h

14

If it takes 5 hours to travel 200 miles to the beach, what is the average speed?

200 = r x 5

Solve for q . q/18 = 5

90