Lesson 6-1
Write the percent as a decimal.
64%
0.64
What is the percent proportion?
a/w=p/100
What is the percent equation?
a=p*w
What is the percent of increase formula?
(new amount - original amount)/ original amount
What is a discount?
What is the simple interest formula?
I=Prt
Write the percent as a decimal.
4%
0.04
What percent of 15 is 12? Show the percent proportion.
80%
What number is 24% of 50? Show the percent equation.
12
What is the percent of decrease formula?
(original amount-new amount)/ original amount
What is a markup?
The increase from what the store pays to the selling price.
You deposit $500 in a savings account. The account earns 3% simple interest per year. What is the balance after 3 years?
$545
Write the fraction as a percent and decimal.
5/8
0.625 and 62.5%
What number is 0.5% of 200? Show the percent proportion.
1
9.5 is what percent of 25? Show the percent equation.
38%
You spent 2 hours on your phone on saturday and 4.5 hours on your phone on sunday. What is the percent of change from saturday to sunday?
125% increase
The original price of a game is $35. It is on sale for 25% off. What is the sale price?
$26.25
You deposit $1,000 in an account. The account earns $100 simple interest in 4 years. What is the annual interest rate?
2.5%
Write the fraction as a decimal and percent.
15/11
1.36 repeating and 136.36% repeating
150% of what number is 30? Show the percent proportion.
20
39 is 52% of what number? Show the percent equation.
75
Mike hit 28 homeruns in 2016 and 20 homeruns in 2017. What is the percent of change from 2016 to 2017?
28.6% decrease
A pair of shoes are on sale for $33. The shoes were discounted for 40% off. What is the original price of the shoes?
$55
6.25 years
An ice rink is open December through February. 0.72 of the total attendance was in December, 16% of the attendance was in February. How many times more guests visit the ice rink in December than February?
4.5 times more guests in December than February
A meteorologist charted the number of tornadoes in the state of Oklahoma. In 2022, there were 58 EF1 tornadoes. There were 145 total tornadoes in 2022. What percent of the tornadoes were EF1s?
40 EF1 Tornadoes
Your food total for lunch is $27.50. You leave a 16% tip on the food total. You also pay $1.65 in tax. Find the total amount you payed for lunch.
$33.55
You fill bags with 16 ounces of candy. The acceptable percent error when filling a bag is 5%. You fill a bag with 16.5 ounces. Tell whether the bag is acceptable.
Yes. Percent error is 3.125% for the bag.
A store pays $70 for an outdoor table. What is the selling price of the outdoor table when the markup is 20%
$84
You borrow $600 to buy a computer. The simple annual interest rate is 15%. You pay off the loan after 2 years of equal monthly payments. How much is each payment?
$32.50