Solving Two-Step Inequalities — Test Answers
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21
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An animal shelter estimates that it costs about $6 per day to care for each dog. If y represents the total cost of caring for a single dog for x days, which table models the situation?
A
A 2-column table with 3 rows. Column 1 is labeled x with entries 12, 15, 18. Column 2 is labeled y with entries 6, 9, 12.
B
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 12, 15, 18.
C
A 2-column table with 3 rows. Column 1 is labeled x with entries 36, 54, 72. Column 2 is labeled y with entries 6, 9, 12.
D
A 2-column table with 3 rows. Column 1 is labeled x with entries 6, 9, 12. Column 2 is labeled y with entries 36, 54, 72.
22
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Sandy evaluated the expression below. What was Sandy’s error?
A
Sandy should have evaluated as –8.
B
Sandy should have not multiplied 5 and 5.C
Sandy did not add 2 and 3 correctly.D
Sandy should have not subtracted 3 from 6 first.23
There are 16 tablespoons in one cup. Which table correctly relates the number of cups to the number of tablespoons?
A
A 2-column table with 4 rows. Column 1 is labeled cups with entries 1, 2, 4, 8. Column 2 is labeled tablespoons with entries 16, 32, 64, 128.
B
A 2-column table with 4 rows. Column 1 is labeled cups with entries 16, 32, 64, 128. Column 2 is labeled tablespoons with entries 1, 2, 4, 8.
C
A 2-column table with 4 rows. Column 1 is labeled cups with entries 32, 48, 80, 144. Column 2 is labeled tablespoons with entries 16, 32, 64, 128.
D
A 2-column table with 4 rows. Column 1 is labeled cups with entries 16, 32, 64, 128. Column 2 is labeled tablespoons with entries 32, 48, 80, 144.
24
Which equations have the same value of x as ? Select three options.
A
18 x minus 15 = 72
B
50 x minus 25 = 72
C
18 x minus 9 = 72
D
3 (6 x minus 3) = 72
E
x = 4.5
25
Sharon graphed the formula for converting weight from kilograms to pounds.If an item weighs 45 kilograms, what is its weight in pounds?
A
20B
63C
90D
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