Ratios
Write the ratio of boys to girls if there are 6 boys and 9 girls.
What is 6:9 or 2:3
What percent is shaded if 25 out of 100 squares are shaded?
What is 25%
Write 1/4 as a percent.
What is 25%
What does simple interest mean?
Interest earned only on the original amount
What is sales tax?
Extra money added to the price of items
A recipe uses 2 cups of sugar for every 3 cups of flour.
Write the ratio of sugar to flour.
What is 2:3
What is 50% of 40?
20
Write 3:5 as a fraction.
3/5
If you save $100 at 5% interest, how much interest do you earn in one year?
5
An item costs $10 and the tax rate is 10%.
How much tax is added?
1
There are 12 red marbles and 8 blue marbles.
Write the ratio of red to total marbles in simplest form.
What is 3:5?
A shirt is 20% off and originally costs $30.
How much is the discount?
What is 6?
Convert 40% to a fraction in simplest form.
2/5
You invest $200 at 10% simple interest for 1 year.
How much money will you have total?
$220
A $50 item has 8% tax.
How much tax do you pay?
4
A class has a ratio of 4:5 boys to girls.
If there are 20 boys, how many girls are there?
What is 25?
You scored 18 out of 24 on a quiz.
What percent did you earn?
What is 75%?
Convert 1.6 to a percent
What is 160%
$300 earns 4% simple interest in one year.
How much interest is earned?
12
What is the total cost of a $25 item with 6% tax?
26.50
Two ratios are equivalent. One is 3:4.
Create another equivalent ratio and explain how you know.
What is 6:8, etc?
Increase 60 by 25%.
WHat is 75?
A ratio is 7:20.
Write it as a fraction and a percent.
7/20 = 35%
Explain why earning interest is good for savings but bad for loans.
More money earned vs. more money owed
You buy a $40 item with 8% tax and then earn 10% interest on the total for one year.
How much money do you have after one year?
$47.52