please list the phrases if you would like to get an accurate answer :)
Say: centimetre=u
---------------------
3u*7u
=3*7*u*u
=3*7*u²
=21u²
=21cm²
<u>Answer
</u>
AB=21
<u>Solution
</u>
In the triangle ABC two lines are parallel to side AC.In a triangle a line passing through two side and it is parallel to third side,then this line divides two side in equal ratio.
Here we take any of the parallel line, passing through AB and AC, and parallel to BC.
So we can write,
=
8x+1=6x+2.5x
x=1/0.5
x=2
Therefore AB = 6x+2x+1+2x =10x+1=21
If she works 40 hours or less then she earns 20x dollars.
If she works more than 40 hours, then she earns 20×40 dollars for the first 40 hours and 30×(x-40) dollars for <span>every hour over 40 hours. The number of hours over 40 hours is x-40.</span>
Rational number thats the answer