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Brums [2.3K]
3 years ago
5

Phyllis paid $408 for new wall-to-wall carpeting in her living room. The carpeting was $12 per square yard, plus a $120 installa

tion charge. How many square yards did she buy?
A. 26 sq yd


B. 34 sq yd


C. 44 sq yd


D. 24 sq yd
Mathematics
1 answer:
kipiarov [429]3 years ago
3 0
.)26

y=12x+120

y=12(26)+120

y=312+120

y=432 (No)

B.)34

y=12x+120

y=12(34)+120

y=408+120

y=528 (No)

C.)44

y=12(44)+120

y=528+120

y=648 (No)

D.)24

y=12x+120

y=12(24)+120

y=288+120

y=408 (Yes)

The other way is setting it equal to...

12x+120=408

Isolate the variable...

12x+120=408
       -120   -120

12x=288

x=24
Thus (D) is you answer!

Hope this helps!
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