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gayaneshka [121]
3 years ago
6

NEED ANSWER ASAP PLEASE

Mathematics
2 answers:
Kay [80]3 years ago
5 0

Answer:

<h2>After 1 hour and 24 minutes.</h2>

Step-by-step explanation:

The turtle.

  • It gets 7 kilometers head start.
  • Its speed is 2 kilometers per hour.

The rabbit.

  • It doesn't get any head start.
  • Its speed is 7 kilometers per hour.

We know that, v_{turtle} =  2km/hr and v_{rabbit}= 7km/hr

Assuming both have a constant movement, we define each one with

d=vt

d_{rabbit}=v_{rabbit}t and d_{turtle}=v_{turtle}t, replacing values, we have

d=7t which is the distance of the rabbit, and we know the turtle's is +7, so

d=2t+7.

Now, we substute the first equation into the second one,

7t=2t+7\\7t-2t=7\\5t=7\\t=\frac{7}{5}hr

If we divide, we'll have a mixed number

t=\frac{7}{5}=1\frac{2}{5}= 1 \ hr \    24 \ min

Therefore, the time they will meet is after 1 hour and 24 minutes.

ollegr [7]3 years ago
3 0
I don't get how it would be a system of equations.
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