VOCABULARY
WORD PROBLEMS
EQUATIONS
PERCENT TO DECIMAL
PARTY MIX
100

What does "n" represent in the simple interest formula?

The amount of time money is borrowed

100

Emilio's father borrows $1,200 from the bank for a riding lawnmower. The interest rate is 8% per year. how much simple interest will he pay if he takes 2 years to repay the loan?

$192

100

Calculate the simple interest when:
P=$1050 r=4.6% p.a. i=2 years

$96.60

100

Change 69% to a decimal

0.69

100
1,000 x 87 x C = 174000 What is C
What is C = 2
200

The amount paid or earned for the use of money

Interest

200

Raini has $750 in a savings account that pays 3% simple interest per year. How much interest will he earn in 9 months?

$16.88

200

Calculate the simple interest when:
P=$250 r=2.85% p.a. n=3 years

$21.38

200

Change 1.5% to a decimal

0.015

200
A sound system has a regular price of $249. Find the total cost if it is on sale for 50% off and the sales tax is 5.75%.
What is $131.66
300

The amount of money deposited or invested

Principal (initial amount)

300

Cory charged a $600 TV on his credit card with an interest rate of 21%. per year. If he has no other charges on the card, how much will he owe after one month?

What is $610.50?

300

Calculate the simple interest when:
P=$500 r=3.75% p.a. n=52 weeks

$18.75

300

Express 36 months in years

3 years

300
Multiple Choice. A baseball cap at the mall costs $14.95. It is on sale for 30% off. What is the sale price to the nearest cent? A)$4.49 B)$10.47 C)$10.50 D)$10.65
What is B)$10.47
400

What does "r" represent in the simple interest formula?

The interest rate written as a decimal

400
*Marcus has $1,800 from his summer job to invest. Suppose he invests the $1,800 for 2 years and earns $144. What is the rate of interst?
What is 4%?
400

Calculate the simple interest when:
P=$3,000 r=5.5% p.a. n=24 months

$330

400

Express 18 months in years

1.5 years

400
What does I=prt stand for?
What is Simple interest=pricipal x rate(decimal) x time (years)
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