Percents: Solving for a Whole

3% of 750 is what number?

• 2.25

• 22.5

• 225

9% of 50 is what?

• 4.5

• 45

• .45

• .045

How do you find the PERCENT if you have the WHOLE and the PART?

• Change the % to a decimal then assign a variable for the whole and solve the equation.

• Assign a variable for the percent then put the whole and part into the equation and solve the equation. Change your answer from a decimal to a % by moving the decimal.

• Change the % to a decimal then assign a variable for the part and solve the equation.

• Assign a variable for the percent then divide by 1,000. After that add the whole to the sum.

What PERCENT of 186 is 93?

• .5

• 200%

• .2

• 50%

What PERCENT of 200 is 40?

• .2

• 50%

• 50.0

• 20%

What PERCENT of 88 is 11?

• 8%

• .125

• 12.5%

• 8.0

Am I looking for the PART, WHOLE, or PERCENT:

70% of WHAT NUMBER is 112?

• Whole

• Part

• Percent

What are the 2 methods for solving a percent problem?

• Write/solve equation

  divide by 1,000

• Draw double number line (model)

  divide by 1,000

• Write/Solve equation

  use a ratio table

• Write/Solve equation

  Draw double number line (model)

On Tuesday, 620 students attended Greenville Middle School. If 341 students brought lunch to school that day, what PERCENT of students brought there lunch?

• 58%

• 55%

• 2.5%

• 5.5%

When solving a percent problem, how do you find the PART?

• Multiply the percent by the whole.

• Change the percent to a decimal then multiply the decimal by the whole.

• Change the percent to a decimal then multiply the decimal by the part.