Simple Interest
How much interest is earned for a principal amount of $100, the annual simple interest rate is 1%, and the number of years is 10? Round to the nearest cent.
$10.00
A shirt costs $30. If the sales tax is 8%, what is the total price you pay?
$32.40
A laptop was originally sold for $975. The laptop is now on sale for 15% off. What is the sale price, rounded to the nearest cent?
$828.75
The value of an autographed baseball card increased from $39 to $65. What is the percent increase? Round to a whole number!
67%
How do you determine if a table is proportional?
Divided y/x and they all have to be the same number (constant).
Jerry opened a savings account for his son when he was born. He put $5000 into the account that earns 3% interest. How much will be the account after 18 years?
$7,700
Jermaine buys T-shirts for $6 and marks up the price by 45% to make a profit. What is the total cost after the markup?
$8.70
A $200 laptop is on sale for 10% off. What is the sale price?
$180
A newborn lion was 2.8 pounds, a week later the lion cub weighed 3.5 pounds. What is the percent change? Round to a whole number
25%
What is the correct format of a proportional equation?
y=kx
Samson opened a bank account with 1.25% simple interest. The total amount of interest Samson will earn after 20 years is $812.50. What was the principle deposit?
$3,250
You want to buy a pack of candy from the $1.25 store. How much will you pay after 6.625% tax?
$1.33
A $25 book is discounted by 20%. What is the new price?
$20
A body builder consumed 4,400 calories yesterday. Today, he consumed 3,600 calories. What is the percent decrease? Round to whole number.
18%
How do you determine if a graph is proportional?
Straight line
Passes through the origin (0,0)
Houston deposits $600 into a savings account with a simple interest rate of 2.5%. He wants to keep his deposit in the bank long enough to earn at least $120 in interest. This is how many years he should leave it in his account.
At least 8 years
A coffee table is on sale for 20% off the original price of $115. If there is a 7.5% sales tax, what would be the final price.
$98.90
A car is originally $62,000 but it is discounted 35%, what is the new price?
$40,300
There are 126 students in 8th grade but only 84 students in 7th grade. What is the percent decrease? Round to a whole number.
33%
Do the coordinate points (1, 2) (2, 4) (6, 7) represent a proportional relationship?
No, they do not have the same constant.
2/1 = 2
4/2 = 2
7/6 does not equal 2
Mia opened a bank account that earns simple interest with an initial deposit of $2,200. She made no other transactions throughout the year. At the end of the year, Mia had $2,260.50 in her account. What is her interest rate as a PERCENT?
2.75%
You order food from Uber Eats and it costs $16.50. What is your total after 5% sales tax and 15% tip for the delivery driver?
$19.80
Bath and Body works candles are buy 1 get one 75% off. So you buy two candles priced originally at $9.99 each. How much do they cost at checkout?
$12.49
Emily's car payment used to be $250 each month. Now her car payment is $275 each month. Enrique's car payment used to be $200 each month. Now his car payment is $225 each month. This is the percent change for both Emily and Enrique? (Two answers & round to a whole number)
Emily 10%
Enrique 13%
Write an equation to represent a student completing 25 minutes on iReady every day.
y=25x