Proportion Word Problem Challenge

The video tutorial explains how to solve a word problem using proportions. It involves determining how long it will take Arthur to type a 390-word paper, given that he can type 30 words per minute. The tutorial covers setting up a proportion, using cross products to solve it, and finding the solution. Key steps include identifying known values, setting up the proportion with matching labels, and performing calculations to find the unknown variable.

What is the total length of the paper Arthur is typing?

• 300 words

• 390 words

• 350 words

• 400 words

Tags

CCSS.1.OA.A.1

How many words can Arthur type in one minute?

• 35 words

• 30 words

• 25 words

• 20 words

Tags

CCSS.3.OA.A.3

What is the first step in setting up the proportion?

• Write the given information as fractions

• Multiply the numbers

• Divide the numbers

• Identify the unknown variable

Tags

CCSS.7.RP.A.2C

Where should the 390 words be placed in the proportion?

• On the top right

• On the bottom right

• On the top left

• On the bottom left

Tags

CCSS.7.RP.A.2B

What method is used to solve the proportion?

• Addition

• Subtraction

• Division

• Cross multiplication

Tags

CCSS.7.RP.A.2A

What is the result of multiplying 1 by 390?

• 13

• 1

• 390

• 30

Tags

CCSS.4.NBT.B.5

What operation is performed to isolate the variable x?

• Addition

• Multiplication

• Subtraction

• Division

Tags

CCSS.6.EE.B.7

What is the value of x after solving the equation?

• 15

• 13

• 12

• 10

Tags

CCSS.7.EE.B.4A

How many minutes will it take Arthur to type the 390-word paper?

• 10 minutes

• 12 minutes

• 13 minutes

• 15 minutes

Tags

CCSS.6.RP.A.3B

What should always match when setting up proportions?

• Variables and constants

• Labels across from each other

• Numbers and numbers

• None of the above

Tags

CCSS.7.RP.A.2C