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Mathematics 21 Online
OpenStudy (anonymous):

I really need help with my pre-algebra homework

OpenStudy (anonymous):

okay ....how can i help

OpenStudy (anonymous):

mostly story problems..

OpenStudy (anonymous):

How long did it take Ted to drive 272 miles if his average speed was 68 mph?

OpenStudy (anonymous):

you know the distance and you know the speed so you need time time= distance/speed=272/68= hour

OpenStudy (anonymous):

272/68= 4hours

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

thanks convert 140 square feet into square inches.

OpenStudy (anonymous):

idk how to do the square thing

OpenStudy (anonymous):

how you convert in to ft

OpenStudy (anonymous):

so is it 140 x 12

OpenStudy (anonymous):

1 ft= 12 in 1ft^2= 12^2 in ^2

OpenStudy (anonymous):

is it 1680 square inches?

OpenStudy (anonymous):

(140 ft^2)(12in/1 ft)*(12 in/1ft)=140*12*12

OpenStudy (anonymous):

i am getting 20160 in^2

OpenStudy (anonymous):

oh okay

OpenStudy (anonymous):

okay.....take care

OpenStudy (anonymous):

your right

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