Answer:
D - 56.6 MPH is the faster
Step-by-step explanation:
Find the unit rate by dividing the miles by hours
A. 589/11 = 53.55 MPH
B. 360/7 = 51.43 MPH
C. 111/2 = 55.5 MPH
D. 283/5 = 56.6 MPH
Hi there! Hopefully this helps!
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<h2>Answer: r = 7.</h2><h2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h2>
Swap sides so that all variable terms are on the left hand side.
Subtract 10 from both sides.
<h2>Subtract 10 from 17 to get, you guessed it, 7!</h2>
Answer:
453.3203125
Step-by-step explanation:
I hope it's right just use it. If it's wrong, I'll try again.
The solution for this problem is:
<span>Let time taken by Emily be x </span>
<span>
then Aileen take 2/3 of x = 2x/3 </span>
<span>
1 min work of Emily = 1/x</span>
<span>
1 min work of Aileen = 1/ 2x/3 => 3/2x</span>
<span>
1 min work of both = 1/45</span>
<span>
1/x + 3/2x = 1/45</span>
<span>
5/2x = 1/45</span>
<span>
1/x = 2/225</span>
<span>
Emily take 225/2 mins to complete the work, then Aileen</span>
<span>= 225/2*2/3</span>
<span>= 75 mins.</span>
