Which of the Following Is an Example of Using Unit

question 16

Multiple Choice

Which of the following is an example of using unit ratemethod of solving proportions?

• A)If 23= x15 ,find the cross products,30 = 3x,and then solve for x.x = 10.
• B)Allison bought 3 pairs of socks for $12.To find out how much 10 pairs cost,find that $12 divided by 3 is $4 a pair,and multiply $4 by 10 for a total of $40.
• C)A square with a length of 2 inches was enlarged by a scale factor of 4 and is now 8 inches long.
• D)If 5 candy bars cost $4.50,then 10 would cost $9.(Because 5 × 2 = 10,multiply $4.50 by 2).

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