Percents and Equations

6.7

Translations

• Is =• Of = multiplication• What = x• Turn % into fraction or decimal to compute

Finding the Percent

• What percent of 40 is 6?What percent= x0f = multiplicationIs = equal sign

40 6x 0.15x 15%x

Finding the Part

• What is 15% of 40?What = xIs = equals15% =0.15Of= multiplication

0.15 40n 6n

Finding the Whole

• 6 is 15% of what ?Is = equal15%= 0.15Of= multiplicationWhat= x

6 0.15 x 40x

What is 45.5% of 20?

0.455 20n

9.1n

380 is 125% of what number?

380 1.25n

304n

Commission

• Sales based jobs pay an amount based on how much you sale

A Taylor Swift receives a 5% royalty on each CD sale. To the nearest cent find her

royalty for a CD that sales for $16.99.

0.05 16.99n 0.8495n$0.85n

For a $20.14 restaurant bill estimate a 15% tip

0.15 20.14n

3.021n$3.02

Homework

• Page 312 (8-38) even