15 miles
15(64)+42=1002 mile - Andrea (42 is added because of her head start.)
15(67)=1005 miles - Parker
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>
Answer: 45
Step-by-step explanation:
When multiplying by 10^2 you first multiply 10 by itself twice like 10x10=100 and then multiply .45x100=45 because multiplying by 100 simply moves the decimal place over twice to the right
Answer:
140
Step-by-step explanation:
Answer:
y= 
+ 
Step-by-step explanation:
6=4x+9y
First swap sides so that all variables are on the left side.
4x+9y=6
Subtract 4x from both sides.
9y=6-4x
Divide both sides by 9, this undoes the multiplication.
y=
Divide 6-4x by 9.
y= +
hope this helps!
