Mathematical Problem Solving

This video tutorial covers solving rate problems, including calculating the cost of cheese slices, determining the number of copies a machine can print in a given time, and comparing the weight of various objects. It also analyzes earnings from lawn mowing jobs, performs decimal calculations, and demonstrates how to decompose and calculate the area of a polygon.

If a package of 11 slices of cheese costs $2.97, how much would 18 slices cost?

• $5.40

• $4.86

• $5.00

• $4.50

How many copies can a machine print in 10 minutes if it prints 480 copies in 4 minutes?

• 1200 copies

• 1000 copies

• 800 copies

• 1500 copies

How long does it take to print 720 copies if the machine prints 120 copies per minute?

• 8 minutes

• 7 minutes

• 5 minutes

• 6 minutes

Which object is the heaviest when converted to pounds?

• School bus

• Elephant

• Horse

• Grand piano

What is the weight of a grand piano in pounds if it weighs 15,840 ounces?

• 990 pounds

• 980 pounds

• 1000 pounds

• 950 pounds

Which job paid Andre the highest hourly rate?

• Neighbor's lawn

• All paid the same

• Uncle's lawn

• Community center

How much did Andre earn per hour for mowing the community center's lawn?

• $15

• $30

• $20

• $25

What is the result of multiplying 1/2 by 17?

• 8.5

• 8

• 9

• 8.7

Calculate the product of 3/4 and 200.

• 170

• 160

• 150

• 140

What is the total area of the heart-shaped polygon in square centimeters?

• 85 cm²

• 90 cm²

• 88 cm²

• 92 cm²