Linear modeling practice quiz

At a bookstore, books cost $6 and comic books cost $3. How many comic books can you buy if you have a $60.00 gift card and buy 7 books?

What is the equation that models this problem?

• 6X + 3Y = 60

• Y= 6(60) + 3

• Y = 6(3) + 60

At a bookstore, books cost $6 and comic books cost $3. How many comic books can you buy if you have a $60.00 gift card and buy 7 books?

What is the solution to this problem?

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A certain movie streaming service charges $20 for a month of service plus $2 for each movie you rent. If your bill for hte month is $36, how many movies did you get that month?

Which equation models this problem?

• 20X + 2Y = 36

• 36 = 2(X) + 20

• 36 = 20(X) + 2

A certain movie streaming service charges $20 for a month of service plus $2 for each movie you rent. If your bill for hte month is $36, how many movies did you get that month?

What is the solution to this problem?

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A college professor grades his class for the week based on how many assignments a student completes at 6 points each plus a base grade of 50. What would your grade be if you completed 7 assignments for the week?

• Y = 6(X) + 50

• 50 = 6(X) + 7

• Y = 50(X) + 7

A college professor grades his class for the week based on how many assignments a student completes at 6 points each plus a base grade of 50. What would your grade be if you completed 7 assignments for the week?

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Students can earn 6 points for every open response question they get right on a quiz and 2 points for every multiple choice question. Mark got a 92 on the quiz and answered 10 open response questions correctly. How many multiple choice questions did he answer correctly?

What equation models this situation?

• 92 = 2(X) + 10

• 92 = 6(X) + 2(Y)

• 10 = 6(X) + 2(Y)

Students can earn 6 points for every open response question they get right on a quiz and 2 points for every multiple choice question. Mark got a 92 on the quiz and answered 10 open response questions correctly. How many multiple choice questions did he answer correctly?

What is the answer to this problem?

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A digital media store allows you to download songs for $1.29 each and movies for $12.50 each. How many movies did you buy if your total bill was 100.80 and you purchased 20 songs?

Which equation models this problem?

• $100.80 = $1.29(X) + $12.50

• $100.80 = 12.50(X) + $1.29

• $100.80 = $1.29(X) + 12.50(Y)

A digital media store allows you to download songs for $1.29 each and movies for $12.50 each. How many movies did you buy if your total bill was 100.80 and you purchased 20 songs?

What is the solution to this problem?

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