The answer:
<span>One student can paint a wall in 10 minutes
</span><span>another student can paint the same wall in 15 minutes.
If they paint together the wall, the result time will be
15mn - 10mn = 5 mn
</span>proof:
let / = minute
<span><span>student 1: / / / / / / / / / /
</span>student2: / / / / / / / / / / / / / / /
x----------------------------------------x
already done
the remain time is / / / / / = five minutes
</span>
Answer:
Step-by-step explanation:
Let one no. =x
Therefore,other no. =x-7
According to question,
x+x-7= -23
2x=-23+7
x=-16/2
x=-8
What is the question exactly?
A = (2 , 8 )
B = ( 7 , -5 )
therefore, midpoint of AB
( x1 + x2/2 , y1 + y2/2 )
→ ( 2 + 7/2 , 8 + (-5)/2 )
→ 9/2 , 3/2
→ 4.5 , 1.5
<em>so,</em><em> </em><em>option </em><em>B </em><em>is </em><em>correct</em>
<em><u>hope </u></em><em><u>this </u></em><em><u>answer </u></em><em><u>helps </u></em><em><u>you </u></em><em><u>dear.</u></em><em><u>.</u></em><em><u>.</u></em><em><u> take</u></em><em><u> </u></em><em><u>care!</u></em>
The is (5000,59) and you can check this by doing this -0.004(5000)+79
