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Please help with math homework....thx

  1. Copper weighing 4480 kilograms has a volume of 0.5 cubic meters. What is the density of copper?

2.Yoshi's yogurt contains 15 calories per ounce. How many calories are in an 8 ounce container of Yoshi's yogurt?

  1. Emily earns $7.50 per hour. How much does she earn in 3 hours?

Estimate the unit rate.

  1. 43 apples in 5 bags
  2. 71.00 for 8 hours
  3. 146 students in 6 classes
  4. 7 miles in 64 minutes
  5. 52.00 for 5 hours
  6. 3.55 for 4 lbs.

Verified Answer :

foggles
  1. Density = mass/volume. Therefore, the density of copper is 4480/0.5 = 8960 kg/m

    2. 8 oz container with 15 calories per oz. therefore 15*8 = 120 calories

    3. $7.50*3 = $22.50

    4. Approximately 9 apples per bag.
    5. Approximately $8.90 per hour
    6. Approximately 24 students per class
    7. Approximately 6.56 mph
    8. Approximately $    10.40 per hour
    9 Approximately $0.89 per lbs

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