Ratios and Rates
Proportions
Scale Drawings and Models
and Similar Figures
and Similar Figures
Percents
Simple Interest
100
A tray of muffins contains 10 chocolate chip muffins, 12 blueberry muffins, 2 pumpkin muffins, and 8 corn muffins.
Tell the ratio of pumpkin muffins to chocolate chip muffins
1:5
100
Is this a proportion? If yes tell the rate.
Yes, 2.5 in per hour
100
On a map with a scale of 0.5 inch = 75 miles, the distance between two cities is 2.75 inches. Find the actual distance between the cities.
x=412.5
100
What percent of 80 is 18?
22.5
100
Suppose $3,750 is placed in a savings account for 4 years. Find the interest earned if the interest rate is 1.85%.
$277.50
200
A tray of muffins contains 10 chocolate chip muffins, 12 blueberry muffins, 2 pumpkin muffins, and 8 corn muffins.
Tell the ratio of blueberry muffins to corn muffins
3:2
200
Solve the proportion.
x=4.5
200
Nate made a model of the USS Massachusetts Battleship that is 3 feet long. If the actual battleship is 681 feet long, what scale did he use?
1 ft.=227 ft.
200
Find 42% of 135.
56.7
200
Simone borrowed $13,500 from the bank to purchase a used car. If the interest rate on this 72-month loan is 5.9%, how much will Simone pay in total back to the bank?
$18279
300
8 feet to 6 yards
4:9
300
Solve the proportion.
x=17.1
300
What is x?
x=19
300
At Wally’s school, 30% of the students are in 8th grade. If there are 470 students total, find the number of 8th grade students.
141 students
300
Rylan placed $1,200 in a retirement account. Seven years later, it had earned $546 in interest. Find the interest rate.
6.5%
400
4 years to 8 months
6:1
400
x=2.5 cups
400
Given ∆QRS ~ ∆QTV, find RS.
x=13
400
A stereo that regularly costs $429.99 is on sale for 35% off. How much money will be discounted from the regular price?
$150.50
400
Alexia took out a 12-year loan for $72,000 to renovate her home. If her monthly payments are $680, what is the interest rate?
3%
500
It took Ciera 24 minutes to drive 18 miles. It took James one hour to drive 46 miles. Who is driving at a faster rate and what is the rate?
James 1.3 min per mile
500
Runners in the half marathon entered in three waves. There were 341 runners in the first wave, 295 runners in the second wave, and 316 runners in the third wave. If seven out of eight runners finished the race, how many did not finish?
x=119
500
A 15-foot street lamp casts a 9-foot shadow. If the street lamp is near a 71-foot building, find the length of the shadow casted by the building.
x=42.6
500
The Barnes family has a coupon for 10% off their dinner. If their bill comes to $82.50 and they wish to tip 15%, what will they pay in total?
$85.39
500
How many years will it take a $5,000 investment to reach $7,500 at an 8% interest rate?
6.25 years