Cross Products
9/6 = 15/x
x = 10
What is 32% of 140?
44.8
John can eat 20 mints in 3 minutes. How many minutes will it take him to eat 150 mints?
22.5 minutes
Ben earns 1.6% commission on every car he sells. He sold a truck for $85,000. How much will he earn for commission?
$1,360
You borrow $300 for eight years at an interest rate of 4%. How much interest will you pay?
$96 interest
-7/5 = y/3
y = -4.2
What percent of 40 is 26?
65%
NJHS accepts 4 students for every 6 applicants. How many students will be accepted if 150 applicants apply?
100 students
Food bill was $32. You leave an 18% tip. Calculate total bill.
$37.76
You invest $3,625 for seven years at an interest rate of 2%. What was your total investment worth at the end of seven years?
$4132.50
3x/6 = 8/2
x=8
70 is 35% of what number?
200
Emma originally earned $2.50 per hour for cleaning the house. This year, her parents increased her pay to $4.00 per hour. Calculate the percent change.
60% increase
Shoes cost $43.50 are on sale for 12% off. Calculate sale price.
$38.28
You took out a loan to pay for your car. The interest rate was 3%, and you kept the loan for 10 years. If the interest at the end of 10 years was $810, how much was the loan for?
$2,700
7/(x+5) = 10/5
x = -1.5
Of the 175 eighth grade students, 48% of them are girls. How many eighth graders are girls?
84 girls
There were 15 cats at the shelter on Tuesday. By Saturday, there were only 9 cats left. Calculate the percent change.
40% decrease
Skis cost $242 before tax. Tax is 6.5%. What is total cost after tax?
$257.73
You borrowed $4,560 at a rate of 4% for a certain number of years. If the interest at the end of the years was $1,094.40, how many years was it borrowed for?
6 years
6/(x-1) = 9/7
x = 5.666666666666
There are 27 green candies, which make up 30% of all candies in the bowl. How many candies are in the bowl in all?
90 candies
Jack guessed that there would be 85 students at the basketball game, but there was actually 125 students at the game. Calculate his percent error.
32% error
Something is on sale for 10% off. Describe the trick to finding the sale price in one step.
You want to add a 20% tip to a bill. Describe the trick to finding the total bill in one step.
Multiply the amount by 0.90
Multiply the amount by 1.20
You invest $455 at a rate of 5%. If the END BALANCE (original plus interest) is $523.25, how many years was it invested for?
3 years