Solving Real-Life Percent Word Problems

The video tutorial explains how to calculate the percentage of recycled cans in the US. It starts by converting the fraction 13/20 into a decimal and then into a percentage. The tutorial demonstrates the division process and explains how to multiply the decimal by 100 to get the percentage. An alternative method is also presented, showing how to convert the fraction directly to a percentage by scaling the fraction to a denominator of 100. The video emphasizes understanding the concept of 'percent' as 'per hundred'.

What is the initial problem presented in the video?

• Finding the total number of cans recycled.

• Calculating the percentage of recycled cans in the United States.

• Determining the number of cans not recycled.

• Comparing recycling rates between countries.

How can 13/20 be interpreted in mathematical terms?

• 13 subtracted from 20

• 13 added to 20

• 13 multiplied by 20

• 13 divided by 20

Tags

CCSS.5.NF.B.3

What is the first step in converting 13/20 to a decimal?

• Subtract 13 from 20

• Divide 13 by 20

• Add 13 to 20

• Multiply 13 by 20

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the decimal equivalent of 13/20?

• 0.50

• 0.85

• 0.75

• 0.65

How do you convert the decimal 0.65 into a percentage?

• Multiply by 10

• Multiply by 100

• Divide by 10

• Divide by 100

What is the percentage equivalent of the decimal 0.65?

• 60%

• 55%

• 70%

• 65%

What does the term 'percent' literally mean?

• Per thousand

• Per ten

• Per hundred

• Per unit

What is the alternative method to convert 13/20 to a percentage?

• Divide both numerator and denominator by 10

• Divide both numerator and denominator by 5

• Multiply both numerator and denominator by 5

• Multiply both numerator and denominator by 10

What is the result of multiplying 13 by 5?

• 70

• 65

• 60

• 55

Tags

CCSS.4.NBT.B.5

What is the final percentage of recycled cans using the alternative method?

• 75%

• 70%

• 65%

• 60%

Tags

CCSS.6.RP.A.3C