What is the relationship between William's and Ben's ages as stated in the problem?

Age Relationships and Equations

Interactive Video
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Mathematics
•
6th - 8th Grade
•
Hard

Amelia Wright
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
William is twice as old as Ben.
William is three times as old as Ben.
William is four times as old as Ben.
William is five times as old as Ben.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which variable is used to represent Ben's current age?
x
y
w
b
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is Ben's age 12 years ago expressed in terms of the variable b?
b + 12
b - 12
12b
b/12
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What equation represents the relationship between William's and Ben's ages 12 years ago?
7(b - 12) = 4b + 12
4(b - 12) = 7b - 12
7(b - 12) = 4b - 12
4(b - 12) = 7b + 12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving the equation 7(b - 12) = 4b - 12?
Add 12 to both sides
Subtract 4b from both sides
Distribute the 7
Divide both sides by 7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After distributing the 7 in the equation, what is the next step?
Divide both sides by 7
Multiply both sides by 3
Subtract 4b from both sides
Add 84 to both sides
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of b after solving the equation?
24
36
12
48
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