Kavita C. answered • 01/03/21

IIT Grad Expert In Algebra

Set up a proportion

10 cm / 4 sec = ? / 5 sec

cross multiply

50 / 4 = 12.5 cm

Sally A.

asked • 12/08/20
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Kavita C. answered • 01/03/21

Tutor

New to Wyzant
IIT Grad Expert In Algebra

Set up a proportion

10 cm / 4 sec = ? / 5 sec

cross multiply

50 / 4 = 12.5 cm

Renee A. answered • 12/31/20

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New to Wyzant
Ready To Learn With Renee

__10 __= __4 __

x 5

10*5=50 and x*4= 4x

50/4=12.5

If the ant can crawl 10 cm in 4 seconds, we need the number of cm per second.

10cm / 4sec = 2.5 cm per second.

Now we need to multiply the cm per second times the number of seconds, that being 5.

2.5 cm/s x 5s = 12.5cm.

Your answer is 12.5 centimeters.

10 cm/ 4 sec = ? / 5 cm

cross multiplies

10*5 = 4*?

50 = 4* ?

?=50/4 = 25/2 = 12 + 1/2

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