AnswersFL-1205040-MJ Grade 7 Mathematics A-CRUnit Test

Unit Test — Unit test Answers

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A recipe uses 3 eggs for every 8 cups of flour. What is the ratio of eggs to flour in the recipe?

A
8 to 3
B
StartFraction 3 over 8 EndFraction
Option B
C
3 to 11
D
8:3
2
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The cost of toothpaste is $6.00 for 3 tubes. At this rate, how much do 12 tubes of toothpaste cost?

A
$15.00
B
$24.00
C
$36.00
D
$72.00
3

Which equation represents a proportional relationship that has a constant of proportionality equal to –10?

A
y = x minus 10
Option A
B
y = StartFraction over negative 10 EndFraction
Option B
C
y = negative 10 x
Option C
D
y = negative 10
Option D
4

The constant of proportionality for the amount of electricity in kilowatt hours and the cost per kilowatt hour is $0.11. Which graph models this situation?

A
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 11 dollars; 250, 27 dollars and 50 cents.
Option A
B
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 9 dollars; 250, 22 dollars and 50 cents.
Option B
C
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 12 dollars; 250, 30 dollars.
Option C
D
A line graph titled Electricity Cost has Kilowatt hours on the x-axis and Cost in dollars on the y-axis. 100 Kilowatt hours is 13 dollars; 250, 32 dollars and 50 cents.
Option D
5

Each batch of Blueberry Breakfast Treats will make 12 muffins. Mrs. Penney wants to make enough muffins for each of the 35 students in her math club and herself to have one.Blueberry Breakfast TreatsNumber of Batches1234Cups of Blueberries------If she does not want any leftovers, which point should Mrs. Penney use to determine the amount of blueberries she will need to make her muffins?

Question illustration
A
A
B
B
C
C
D
D
6

Organic milk costs $2.52 per half gallon. At this rate, how can the price of 4 gallons of organic milk be determined?

A
by multiplying $2.52 by 4
B
by dividing $2.52 by 4
C
by finding the unit price and multiplying it by 4
D
by finding the unit price and dividing it by 4
7

If there are 5 apples to every 3 oranges in a bin, which graph represents the proportional relationship of the fruit in the bin?

A
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (3, 5) and (6, 10) are plotted.
Option A
B
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (4, 3) and (8, 6) are plotted.
Option B
C
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (8, 3) and (16, 6) are plotted.
Option C
D
On a coordinate plane, a graph titled Fruit bin has apples on the x-axis and oranges on the y-axis. Points (5, 3) and (10, 6) are plotted.
Option D
8

If the speed limit of a highway is 60 mph, which car exceeded the speed limit? Assume all the cars were traveling at a constant speed.

A
a car that traveled 183 miles in 3 hours
B
a car that traveled 236 miles in 4 hours
C
a car that traveled 290 miles in 5 hours
D
a car that traveled 342 miles in 6 hours
9

Mika wrote the table of points below. xy023568Which explains whether or not Mika has described a proportional relationship, and why?

A
Mika has described a proportional relationship because the ordered pairs are linear and the line passes through the origin.
B
Mika has not described a proportional relationship. Although it is a linear relationship, it does not pass through the origin.
C
Mika has not described a proportional relationship. Although it passes through the origin, it is not a linear relationship.
D
Mika has described a proportional relationship because the line does not pass through the origin.
10

At a pet store, Davina counted 12 parrots out of 20 birds. Which is an equivalent ratio of parrots to birds at the pet store?

A
2:3
B
3 to 2
C
StartFraction 5 Over 3 EndFraction
Option C
D
3 to 5
11

How can you solve for x in the proportion ?

Question illustration
A
Set the sum of 7 and 8 equal to the sum of 24 and x, and then solve for x.
B
Set the sum of 7 and 24 equal to the sum of 8 and x, and then solve for x.
C
Set the product of 7 and 8 equal to the product of 24 and x, and then solve for x.
D
Set the product of 7 and 24 equal to the product of 8 and x, and then solve for x.
12

Which table represents the same proportional relationship as the graph?

Question illustration
A
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 3, 6, 9. Column 2 is labeled y with entries 0, 4, 8, 12.
Option A
B
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 3, 6, 9. Column 2 is labeled y with entries 1.33, 4, 8, 12.
Option B
C
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 4, 8, 12. Column 2 is labeled y with entries 0.75, 3, 6, 9.
Option C
D
A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 4, 8, 12. Column 2 is labeled y with entries 0, 3, 5, 9.
Option D
13

The unchanging value of the ratio between two proportional quantities is

A
the constant of proportionality.
B
the constant rate.
C
the x-value of an ordered pair.
D
the y-value of an ordered pair.
14

Which table of ordered pairs represents a proportional relationship?

A
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 2, negative 4, negative 6. Column 2 is labeled y with entries 4, 16, 36.
Option A
B
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 4, negative 6, negative 8. Column 2 is labeled y with entries negative 8, negative 12, negative 18.
Option B
C
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 5, negative 7. Column 2 is labeled y with entries 5, 3, 1.
Option C
D
A 2-column table with 3 rows. Column 1 is labeled x with entries negative 3, negative 6, negative 9. Column 2 is labeled y with entries 12, 24, 36.
Option D
15

Antonio jogs 2 laps every 5 minutes. Which point represents this relationship?

Question illustration
A
A
B
B
C
C
D
D
16

Which equation represents a proportional relationship that has a constant of proportionality equal to ?

Question illustration
A
y = x + StartFraction 4 over 5 EndFraction
Option A
B
y = StartFraction 4 over 5 EndFraction x
Option B
C
x y = StartFraction 4 over 5 EndFraction
Option C
D
x + y = StartFraction 4 over 5 EndFraction
Option D
17

Why is a solution to the proportion ?

Question illustration
A
because 192 divided by 32 is equal to 6
B
because 192 divided by 36 is equal to 6
C
because if you substitute 6 into the equation for x and cross multiply, you get
Option C
D
because if you substitute 6 into the equation for x and cross multiply, you get
Option D
18

Which ordered pair would form a proportional relationship with the point graphed below?

Question illustration
A
(10, –20)
B
(–30, 20)
C
(–10, 5)
D
(35, –20)
19

Which graph represents a proportional relationship?

A
On a coordinate plane, a straight line with positive slope goes through points (0, 0), (1, 2), and (2, 4).
Option A
B
On a coordinate plane, a vertical line is at x = negative 3.
Option B
C
On a coordinate plane, a horizontal line is at y = 3.
Option C
D
On a coordinate plane, a curved line goes through the origin.
Option D
20

Sonny substituted 5 for x in the proportion and cross multiplied to get . Why is this?

Question illustration
A
because the cross sums of the proportion are equal
B
because the cross differences of the proportion are equal
C
because the cross products of the proportion are equal
D
because the cross quotients of the proportion are equal

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