Ava and kelly ran a road race, starting from the same place at the same time. ava ran at an average speed of 6 miles per hour. kelly ran at an average speed of 8 miles per hour.

when will ava and kelly be 3/4 mile apart?

this is a challenge. solve.

The answer is:

We have that Ava and Kelly will be 3/4 mile apart after 0.375 hours.

To calculate when will Ava and Kelly be 3/4 mile apart, we need to write the equations for both Ava's and Kelly's positions, so, writing the equations we have:

For Ava:

For Kelly:

We need to calculate when Kelly will be 3/4 mile apart since she is running faster than Ava, so, writing the equation we have:

Now, substituting the equation for Ava into the equation for Kelly, we have:

Proving that the result is correct, substituting the obtained time into both equations, we have:

For Ava:

For Kelly:

There is a difference of 0.75 miles or 3/4 mile between Ava and Kelly, so, the obtained value for time is correct.

Hence, we have that Ava and Kelly will be 3/4 mile apart after 0.375 hours.

Have a nice day!

3x^3-x^2+6x-9

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)