Algebraic Relationships 10

8th Grade AR10. Model situations, make predictions and inferences, and solve problems using linear equations and inequalities. The cost to go to Oaks Amusement Park is $10 plus $3 per ride, r. Which equation expresses the total cost, C? A. B. C. D.

C = 10r + 3 C = 3r + 10 C = 10 – 3r 3r + C = 10

At Good Day Rentals, a dirt bike costs $20 per day plus $0.50 per mile driven (m). Which formula would work best to calculate the cost (c) for a bike rental? c = 20 + 0.5 c = 20m + 0.5 c = 20 − 0.5m c = 20 + 0.5m

A. B. C. D.

Derrick starts a business selling skateboards. If k represents the number of skateboards he sells, how many skateboards will Derrick need to sell in order to make $232 from the business if his profit (P) is represented by the equation:

P = 27k - 146 A. B. C. D.

27 14 9 4

A taxicab ride costs $3.00 plus $0.30 per mile. If Greg’s taxi bill for one ride was $13.20, how many miles did he travel? A. B. C. D.

3.06 miles 34 miles 44 miles 54 miles

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