Name: SAT Math Help & School Math Mastery
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#11842

equations

algebra

hard

75 sec

One gallon of varnish covers 400 square feet of a surface. A deck has a total area of $D$ square feet. Which equation represents the total amount of varnish $V$ , in gallons, needed to varnish the deck three times?

A.

$V = \frac{D}{400}$

B.

$V = \frac{D}{1200}$

C.

$V = \frac{3 D}{400}$

D.

$V = 400 D$