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Question #d0a37

1 Answer

Sep 21, 2015

I found: $$ 3.15$ $$3.15$

Explanation:

We can first change $c m$ $cm$ into $ft$ $"ft"$ knowing that $100 c m = 3.28 ft$ $100cm=3.28"ft"$ : so you get:

$\frac{275}{100} = \frac{x}{3.28}$ $275/100=x/3.28$
so:
$x = \frac{275 \cdot 3.28}{100}$ $x=(275*3.28)/100$
and
$x = 9.02 ft$ $x=9.02"ft"$

at $35 \frac{c e n t s}{ft}$ $35(cents)/"ft"$ you spend:

$35 \cdot 9.02 = 315.7 c e n t s = $ 3.15$ $35*9.02=315.7cents=$3.15$

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