Alexander B. answered • 09/13/15

PhD in Engineering with 20 yrs of Math and Science Teaching Experience

Hello Lexi,

You have asked several questions, so let's answer them one at a time.

1. The time T before you and your friend meet can be calculated based on a simple formula:

T*(4mph+11mph)=12mile,

giving the answer; T = 12/(4+11) =

**0.8 hr**2. The distance you travel from the home to a meeting place is: 4 * 0.8 =

**3.2 mile**3. The distance your friend travels is: 11 * 0.8 =

**8.8 mile.**You can also calculate it by subtracting your travel distance from the total of 12 miles like: 12 - 3.2 = 8.8 miles.You can apply the same technique to solve a second problem (assuming your friend bikes at 12 mph).

Hope this will help.

Alexander B.

tutor

You are welcome!

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09/13/15

Lexi B.

09/13/15