6.1 - Fractions, Decimals, and Percents
Write 74% as a decimal.
0.74
What percent of 60 is 18?
18/60=p/100
p = 30
Identify the percent of change as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a percent if necessary.
6 yards to 36 yards
500% increase
Original Price - $50
Discount - 15%
Sale Price - ?
$42.50
An account earns simple interest.
(a) Find the interest earned.
(b) Find the balance of the account.
$300 at 4% for 3 years
(a) $36
(b) $336
Write 0.079 as a percent.
7.9%
40 is 125% of what number?
40/w=125/100
w=32
Identify the percent of change as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a percent if necessary.
120 meals to 52 meals
56.7% decrease
Original Price - $93.75
Discount - 20%
Sale Price - ?
$75
An account earns simple interest.
(a) Find the interest earned.
(b) Find the balance of the account.
$2000 at 3.5% for 4 years
(a) $280
(b) $2280
Write 3/8 as a decimal and percent.
0.375 and 37.5%
What number is 70% of 70?
a/70=70/100
a=49
Identify the percent of change as an increase or decrease. Then find the percent of change. Round to the nearest tenth of a percent if necessary.
12 surfers to 9 surfers
25% decrease
Original Price - $50
Markup - 25%
Selling Price - ?
$62.50
Find the annual interest rate.
I = $17 , P = $500 , t = 2 years
1.7%