AnswersPre-Algebra A-CRUnit Test

Unit Test — Unit test Answers

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Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below. Not drawn to scaleWhat is the height of the town’s new water tower in feet? Round to the nearest whole number.

Question illustration
A
22 feet
B
40 feet
C
63 feet
D
113 feet
2
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Holly earns $30 for babysitting 5 hours. She earns $28 when she does chores for 4 hours. Which compares the unit rates?

A
The unit rate for babysitting is $2 per hour more than the unit rate for doing chores.
B
The unit rate for babysitting is $1 per hour more than the unit rate for doing chores.
C
The unit rate for doing chores is $1 per hour more than the unit rate for babysitting.
D
The unit rate for doing chores is $2 per hour more than the unit rate for babysitting.
3

What is the value of x in the proportion below?

Question illustration
A
6
B
9
C
12
D
60
4

Carmen creates the ratio table below based on one 8-ounce serving of juice.Calories in JuiceServings of juiceTotal calories1130226033904?How many total calories will 4 servings of juice contain?

A
420
B
520
C
650
D
780
5

Paul needs to find 310% of 72. Which expression should he use?

A
(0.310) (72)
Option A
B
(3.10) (72)
Option B
C
(31.0) (72)
Option C
D
(310) (72)
Option D
6

A $120 wagon is on sale for 15 percent off. What is the sale price of the wagon?

A
$18
B
$102
C
$105
D
$108
7

Based on the table below, what is the relationship between cups and tablespoons?VolumeCupsTablespoons4645806967112

A
The number of cups is of the number of tablespoons.
Option A
B
The number of cups is of the number of tablespoons.
Option B
C
The number of cups is 4 times the number of tablespoons.
D
The number of cups is 16 times the number of tablespoons.
8

Rosa earns $12 per hour. In 7.5 hours, she will earn x dollars. Which is a valid proportion that can be used to solve the problem?

A
StartFraction x over 12 EndFraction = StartFraction 1 over 7.5 EndFraction
Option A
B
StartFraction 1 over 12 EndFraction = StartFraction x over 7.5 EndFraction
Option B
C
StartFraction 12 over 1 EndFraction = StartFraction x over 7.5 EndFraction
Option C
D
StartFraction 12 over 1 EndFraction = StartFraction 7.5 over x EndFraction
Option D
9

Theo used a map that had a ratio of to plan a road trip. He found that the distance on the map from New York City, NY, to Washington, DC, was 14.4 centimeters. How many miles would he have to drive to make that trip?

Question illustration
A
10.4
B
43.2
C
240
D
720
10

Jack works at a sporting goods store and makes a commission of 20 percent. His sales for each week are shown below. How much did Jack make in total in commission during all four weeks?WeekSales1$3,0002$2,5003$3,5004$4,000

A
$200.00
B
$260.00
C
$2,000.00
D
$2,600.00
11

Which of the following statements are true for using proportions to solve for missing measures? Select three options.

A
Corresponding dimensions must be in different positions in the ratios.
B
Corresponding dimensions must be in the same position in the ratios.
C
The two ratios in the proportion are equal.
D
The enlargement or reduction is proportional to the original figure.
E
The scale factor will be different for each ratio.
12

A bicyclist rides the same number of miles every minute. The ratio table below shows the number of miles she rides during certain amounts of time. Biking Times and DistancesNumber of MinutesNumber of Miles102.5164?7.54812Which statement explains how to find the number of minutes it takes to bike 7.5 miles?

A
Find the ratio of minutes to miles, 4:1. Divide 7.5 by 4.
B
Find the ratio of minutes to miles, 4:1. Multiply 7.5 by 4.
C
Find the difference between 16 and 10. Add the difference to 16.
D
Find the difference between 16 and 10. Add the difference to 7.5.
13

Kiesha and her classmates wrote proportions for the reduction of a triangle. Which proportions are set up correctly? Select three options.

Question illustration
A
StartFraction original height over original base EndFraction = StartFraction reduction height over reduction base EndFraction
Option A
B
StartFraction original height over reduction height EndFraction = StartFraction original base over reduction base EndFraction
Option B
C
StartFraction original height over reduction base EndFraction = StartFraction reduction height over original base EndFraction
Option C
D
StartFraction reduction height over reduction base EndFraction = StartFraction original height over original base EndFraction
Option D
E
StartFraction original height over original base EndFraction = StartFraction reduction base over reduction height EndFraction
Option E
14

For a school project, Layla makes a paste made from only two ingredients: flour and water. The ratio table shows the relationship between the number of cups of flour and the total number of cups of paste she can make. What is the ratio of flour to water in the paste?Paste MixtureCups of FlourCups of Paste34689121216

A
1:3
B
3:4
C
4:3
D
3:1
15

Which of the purchases would be the least expensive?PurchaseAmount of sale Sales tax rateA$1505%B$1457%C$1408%D$1359%

A
purchase A
B
purchase B
C
purchase C
D
purchase D

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