Percent Equation

Percent Equation

part = percent x whole

The equation is

a = 12% x 50

is means =

of means multiplication

what means "use a variable"

​Change it to an equation

What is 12% of 50?

Match

Match the following

• What is 15 % of 30?

• 12 is what percent of 20?

• What is 23% of 80?

• What is 42% of 25?

• 15 is what percent of 23?

p = 15% x 30

12 = r x 20

t = 23% x 80

d = 42% x 25

15 = s x 23

• p = 15% x 30

• 12 = r x 20

• t = 23% x 80

• d = 42% x 25

• 15 = s x 23

What is 20% of 15

k = .20 x 15

Now use a calculator to solve

k = 3

Change the percent to a decimal

k = 20% x 15

​Write the equation

Multiple Choice

Solve.
What is 5% of 60?

• 300

• 3

• .03

• .3

Multiple Choice

Solve.
17 is what percent of 68?

• .25

• 25

• 4

• 40

Multiple Choice

What is 20% of 80?

• 1600

• 16

• 160

• 1.6

Multiple Choice

What is 23% of 65?

• 14.95

• 15.95

• 16

• 13.75

Multiple Choice

Bill is in a class of 15 boys and 35 girls. 40% of the students in the class take the bus to school. How many students do not take the bus to school?

• 15

• 20

• 30

• 35

Multiple Choice

The percent equation is ________

• whole = part x percent

• part = percent x whole

• part = percent / whole