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> R.23 Identify equivalent linear expressions: word problems KWH
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120x
x + 1.2x
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Alec's parents give him x dollars per month for his allowance. However, since his birthday is
in February, he gets an extra 20% bonus that month.
Pick all the expressions that represent how much Alec's allowance is in February.
x + 0.2x
+
1.2x
*
D
X
⠀

Answer 1

Alec's parents give him x dollars per month for his allowance. However, since his birthday is in February, he gets an extra 20% bonus that month. The allowance in February can be represented by the expression x + 0.2x because Alec will get the regular allowance of x dollars plus an extra 20% bonus which is equal to 0.2x dollars.

x + 0.2x = Alec's allowance in February

The expression 1.2x is not correct because it represents Alec's allowance multiplied by 1.2 which is not the same as the allowance plus the bonus.

So the correct answer is x + 0.2x.