可汗学院SAT数学练习:Interpreting linear functions【6】!SAT可汗学院复习资料在备考中使用比较广泛,下面智课网为大家整理了关于SAT数学中关于Interpreting linear functions题型的可汗学院复习资料,希望对大家备考有帮助。

  31.p=100h-2000

  It costs $2,000 a month for Mia to rent space to run her law firm. She charges $100 per hour for legal advice. The equation above gives Mia’s profit, P, per month, after working h hour. How many hours does Mia have to work before she starts to make money each month?

  A.20 hours

  B.80hoursO

  C.100hours

  D.200hours

  Correct answer: A Difficulty level: 3

  32.C=1.5b+67.5

  The total cost, C, in dollars, to produce b books is given by the equation below. What is the meaning of 1.5 in the equation?

  A.1.5 books will cost $67.50 to produce.

  B.It costs an extra $1.50 for each book produced.

  C.If you produce one book, you total cost will be $1.50

  D.There is a flat fee of $1.50 to produce any number of books.

  Correct answer: B Difficulty level: 4

  33.B=0.55A

  Jing is making homemade peanut butter. The equation above shows the amount of peanut butter yielded, B, in cups, for A cups of peanuts. What percentage of the volume of peanuts is lost when processing them into peanut butter?

  A.0.55%

  B.0.45%

  C.55%

  D.45%

  Correct answer: D Difficulty level: 4

  34.P=0.7c

  A store is having a sale on every item purchased. Irina decides to take advantage of the sale and purchases a sweater. The equation that gives the after-sale price, P, of Irina’s sweater with an original cost, c, is shown above. What percent off the original cost did Original cost did Irina save?

  A.3%

  B.7%

  C.30%

  D.70%

  Correct answer: C Difficulty level: 4

  35.T=1200-0.06c

  A print shop copies and prints documents in large volume for its customers. For a particular copy machine, the equation above gives the amount of toner, T, in grams, left after making c copies.

  How many grams of toner are used per copy?

  Correct answer: 0.06 Difficulty level: 4

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