A zebra runs 15 miles per hour faster than an elephant. The zebra runs 8 miles in the same time that an elephant runs 5 miles. Write and solve an equation to
calculate the speed of each animal.

elephant:  25 mph; zebra:  40 mph

Step-by-step explanation:

The time required is the same in each case, so we need to set up an equation of the form distance1/speed1 = distance2/speed2:

8 miles                  5 miles

= time =

 speedz                 speede

From this we get:

        8                      5

=

speede + 15       speede

Cross multiplying, we get:  8(speed e) = 5(speede) + 75, or

3(speede) = 75, or

speede = 25 mph

Then speedz = 25 mph + 15 mph = 40 mph = speedz

aloha~! my name is zalgo and i am here to you out on this amazing day. to answer your question, yes, nonzero numbers can have a greatest common factor and that would be 1. still don't get it? let me considering every number is divisible by 1 and hence every number has 1 as a factor of theirs. so, if 2 nonzero numbers didn't share any gcf (greatest common factor), they would still have a factor in common and that would be 1.

i hope that this ! : p

"stay and stay proud! " - zalgo

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