Rates
Proportions
Similar
Planes and Lines
Variation
Percent Things
Application
100
A part-time job pays $237.50 for 25 hours of work. How much money does the job pay per hour?
$9.50 per hour
100
Use cross products to solve each proportion.
e/22=6/15
e=8.8
100
Tell whether the triangles are similar. Then say why or why not.
Not similar because (AB)/(DE) is not proportional to (BC)/(EF) .
100
Identify the quadrant of point C.
Quadrant IV
100
Tell whether each equation represents a direct variation. If so, identify the constant of variation.
4y=x-1/5
no
100
Write as a percent. Round to the nearest tenth of a percent.
0.06
6%
100
Find the selling price of the item.
Original price of a bicycle: $399.95
Discount: 29%
$283.96
200
A factory builds 960 cars in 5 days. What is the average number of cars the factory produces
per day?
192 cars per day
200
Identify the scale factor.
1/9
200
Tell whether the triangles are similar. Then say why or why not.
Similar because the corresponding sides are proportional.
200
Give the coordinates of point K.
(0, -2)
200
Tell whether the equation represents a direct variation. If so, identify the constant of variation.
2y=-6x
yes, k=-3
200
Write as a percent. Round to the nearest tenth of a percent.
8/45
17.8%
200
Find the selling price of the item.
Original price of an oil change: $14.99
Tax: 4%
$15.59
300
A bowler scores 3,152 points in 16 games. What is his average score in points per game?
197 points per game
300
On a scale drawing, a school is 1.6 feet tall. The scale factor is 1/22 . Find the height of the school.
35.2 feet
300
triangle ABC ~ triangle DEF in each pair. Find the unknown measures. 
60 cm
300
Is the slope negative, positive, zero, or undefined?
positive
300
Tell whether the set of data represents a direct variation. If so, identify the constant of variation and then write the direct variation equation.
no
300
What is 8% of 159?
12.72
300
Ms. Tan earns $350 per week plus an 8% commission on her shoe sales. She sold $560 last week. What was her commission and total pay for the week?
commission: $44.80
total pay: $394.80
400
An ocean liner travels 1,233 miles in 36 hours. What is the ocean liner’s average rate of speed?
34.25 miles per hour
400
On a road map of Pennsylvania, the distance from
Philadelphia to Washington, D.C., is 6.8 centimeters. The map scale is 2 cm:40 mi. What is the actual distance between the cities?
136 miles
400
triangle ABC ~ triangle DEF in each pair. Find the unknown measures.
44 degrees
400
What is the slope of the given line?
2
400
Tell whether each set of data represents a direct variation. If so, identify the constant of variation and then write the direct variation equation.
yes, k =0.8, y=0.8x
400
11 is what percent of 18? Round to the nearest tenth of a percent.
61.1%
400
Dena borrowed $7500 to buy a used car. The credit union charged a 9% simple interest per year. She paid $2025 in interest. For what period of time did she borrow the money?
3 years
500
The Nuthouse sells macadamia nuts in three sizes. The 12 oz jar sells for $8.65, the 16 oz jar sells for $10.99, and the 24 oz gift tin costs
$16.99. Which size costs less per ounce?
the 16 oz jar
500
A recipe calls for 2 eggs to make 10 pancakes. How many eggs will you need to make 35 pancakes?
7 eggs
500
A palm tree casts a shadow that is 44 feet long. A 6-foot ladder casts a shadow that is 16 feet long. What is the height of the palm tree.
16.5 feet
500
What is the slope of the given line?
-3
500
Tell whether the graph represents a direct variation. If so, identify the constant of variation and write the equation.
yes, k=5/2, y=5/2x
500
Find the percent change. Round to the nearest tenth of a percent. State whether it is a increase or a decrease.
From 78 to 3.
96.2%
500
At Thrift bank, if you keep $675 in a savings account for 10 years, your money will earn $486 in interest. What annual simple interest rate does the bank offer?
7.2%