The key is Esther travelled the same distance - x - in both her morning and evening commute.
45(time she took in the morning, or p) = x
30(time she took in the evening, or q) = x
Therefore 45(p) = 30(q), or divide both sides by 5 and get 9(p) = 6(q). I know you can divide it further, but these numbers are small enough and it's not worth the time.
Since the whole trip took an hour, (p + q) = 60min, and so, p = 60-q.
Therefore 9(60-q) = 6q or 540-9q = 6q. So 540 = 15q, which makes q = 36. If q = 36, then by (p+q)=60, p (the time she took in the morning) must equal 24.
45 miles per hour, her speed in the morning, times (24/60) hours, her time, makes 18 miles travelled in the morning. If you check, 30 miles per hour times (36/60) hours also makes 18 miles in the evening.
<span>Hope that makes a little sense. And I also hope it's right</span>
Answer:
what is your question there is no equation
Answer:
4.3 to the 3rd power is exactly<em> 79.507 </em>. That number may be rounded, but not simplified.
Step-by-step explanation:
4.3 to the 3rd power means (4.3 x 4.3 x 4.3) . Perform the indicated multiplications to arrive at the solution.
The answer is 33. Remember all complimentary angles equal 90 degrees so subtract 90 from 57 and the other angle is 33
