# CBA #1 Review: Question Preview (ID: 27101)

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The reciprocal of a negative rational number _____ |
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a) is a positive rational number | b) is a negative rational number | c) can be either a positive or a negative rational number | d) does not exist | |

The temperature where Cally lives is 73° and is falling 2° per hour. Which of the following equations can be used to determine how many hours (h) it will take for the temperature to drop to 65°? |
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a) 73−2ℎ=65 | b) 73−65=2ℎ | c) 65−2ℎ=73 | d) 2ℎ−73=65 | |

Bethany spent $9.62 on fruit at the grocery store. She bought a watermelon for $4.97 and some grapes at $1.98 per pound. Which equation below can be used to determine how many pounds (p) of grapes Bethany bought? |
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a) 9.62+4.97=1.98p | b) 9.62=4.97+p | c) 9.62=4.97−1.98p | d) 9.62=4.97+1.98p | |

Braden is reading for history class, starting on page 320. The expression 320 + 2m describes the page number Braden is on after m minutes. How many minutes will it take Braden to reach page 336? |
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a) 8 minutes | b) 16 minutes | c) 22 minutes | d) 34 minutes | |

Which of the following is a solution to the equation x/3 + 2 = 7? |
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a) x = 3 | b) x = 5 | c) x = 15 | d) x = 19 | |

Is x = 2.5 a solution to the equation 4x + 8 = 18? |
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a) Yes, because 2.5 times 4 plus 8 is 18. | b) No, because 4 plus 2.5 plus 8 is 14.5. | c) No, because 4 plus 8 is 12. | d) No, because 42.5 plus 8 is 50.5. | |

Darren’s cell phone bill can be described as 40 + 10d, where d is the amount of data used in MB. If Darren wants his phone bill to be less than $70 this month, which of the following is the largest amount of data he could use without going over $70? |
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a) 2 MB | b) 3 MB | c) 20 MB | d) 30 MB | |

The value of a certain stock can be described as 3.75 + 0.05w, where w is the number of weeks since purchasing the stock. If the value of the stock is currently $5.00, how many weeks have passed? |
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a) 5 weeks | b) 25 weeks | c) 50 weeks | d) 100 weeks | |

The weight of an object on Venus is about 9/10 its weight on Earth and the weight of an object on Mars is about 2/5 its weight on Earth. What is the difference in the weight of a 170-pound person on Venus and Mars? |
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a) 153 pounds | b) 68 pounds | c) 221 pounds | d) 85 pounds | |

Which of the following expressions has a value equivalent to 4.5? |
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a) One-half of negative two-thirds | b) One-third of one hundred eighty-nine thousandths | c) Negative two and one-half divided by negative five-ninths | d) Negative three-fourths divided by negative three-eights | |

On Sunday, Yassif swam 15 2/5 miles in 2.1 hours. What was Yassif’s swimming pace in miles per hour? |
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a) 7 1/3 mph | b) 17 1/2 mph | c) 13 3/10 mph | d) 32 17/50 mph | |

Which one of the following numbers is not rational? |
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a) 7/16 | b) 7/1 | c) 7/0 | d) 0.7 | |

10.01 |
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a) integer | b) rational number | c) rational number | d) None of the above | |

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