SOLUTION: Multiply to find the missing value. Include units in your answer. 3. a.72 hr * $4/1 hr b. 55 mi/1 hr * 7 hr/1 day c. 35 people/1 party * 2.5 pizzas/10 people

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Question 82838: Multiply to find the missing value. Include units in your answer.
3. a.72 hr * $4/1 hr
b. 55 mi/1 hr * 7 hr/1 day
c. 35 people/1 party * 2.5 pizzas/10 people
Answer by tutorcecilia(2144) About Me  (Show Source):
You can put this solution on YOUR website!
3.
a. %2872+hr%2F1+%2A+%244%2F1+hr%29 [cancel out the hour units; the dollar units are left]
.
%2872+%2F1+%2A+%244%2F1+%29
$288/1 [multiply straight across
$288
.
b. %2855+mi%2F1+hr+%2A+7+hr%2F1+day%2A1+day%2F24hr%29[convert days to hours]
[cancel out the units wherever possible (hours and days cancel out]
.
%2855+mi%2F1++%2A+7+%2F1+%2A1+%2F24hr%29 [you are left with miles/hour]
16.0416 mi/hr [multiply straight across]
.

c. 35 people/1 party * 2.5 pizzas/10 people [cancel units wherever possible (people units)]
.
35 /1 party * 2.5 pizzas/10
35 people/1 party * 2.5 pizzas/10 people
8.75 pizzas/party [multiply straight across]