AnswersHCISD-Mathematical Models with Applications B-CR SUMMERFinding a Constant of Proportionality

Finding a Constant of Proportionality Answers

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Discount Comics is running a special: 20 comics for $5.00. Seth purchases 30 comics for $7.50. What is the sale price per comic?$

A
0.25
B
0.40
C
0.75
D
4.00
2
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What is the constant of proportionality?

A
0.25
B
0.40
C
0.75
D
4.00
3

This graph shows a proportional relationship.What is the constant of proportionality?

A
2
B
40
C
80
D
320
4

Which did you include in your explanation?

A
Divide each pair of values.
B
Compare ratios to make sure they are all equal.
C
Divide ratio to find unit rate.
D
Write the unit rate as the constant of proportionality.

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