7th Grade Math

Test PracticeT

10 ÷ $5.49

$1.82 each

38. Mrs. Ross needs to buy dish soap. There
    are four differently sized containers.

Dish Soap Prices

Brand Price

Lots of Suds $0.98 for 8 ounces

Bright Wash $1.29 for 12 ounces

Spotless Soap $3.14 for 30 ounces

Lemon Bright $3.45 for 32 ounces

Which brand costs the least per

ounce?

A. Lots of Suds C. Spotless Soap

B. Bright Wash D. Lemon Bright

39. Bonita spent $2.00 for 20 pencils, Jamal
    spent $1.50 for 10 pencils, and Hasina
    spent $2.10 for 15 pencils. Which of the
    following lists the students from least to
    greatest according to unit price paid?
    F. Bonita, Jamal, Hasina
    G. Hasina, Jamal, Bonita
    H. Bonita, Hasina, Jamal
    I. Jamal, Hasina, Bonita
    40. The Jimenez family took a four-day road
    trip. They traveled 300 miles in 5 hours
    on Sunday, 200 miles in 3 hours on
    Monday, 150 miles in 2.5 hours on
    Tuesday, and 250 miles in 6 hours on
    Wednesday. On which day did they
    average the greatest miles per hour?
    A. Sunday C. Tuesday
    B. Monday D. Wednesday
    41. The table shows the total distance
    traveled by a car driving at a constant
    rate of speed.

Time (h) Distance (mi)

2 130

3.5 227.5

4 260

7 455

How far will the car have traveled after

10 hours?

F. 520 miles H. 650 miles

G. 585 miles I. 715 miles

Lesson 1B Proportions 271

34. FIND THE ERROR Seth is trying to find the unit price
    for a package of blank compact discs on sale at 10
    for $5.49. Find his mistake and correct it.

CHALLENGE Determine whether each statement is sometimes, always, or

never true. Give an example or a counterexample.

35. A ratio is a rate. 36. A rate is a ratio.


36. E WRITE MATH Describe, using an example, how a rate is a measure
    of one quantity per unit of another quantity.

C

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