136 + 25x ≤ 650
<span>136 - 136 + 25x ≤ 650 - 136 </span>
<span>25x ≤ 514 </span>
<span>(1/25)(25x) ≤ (514)(1/25) </span>
<span>x ≤ 20.56 </span>
<span>there can be at at the most, 20 chair in each row.</span>
You would do 25x5 and it is 125 so now you would subtract 300 from 125 and it would be 275
105 m = 2.5 h
x miles = 1 hour
You cross multiply since it's a proportion:
2.5 * x
105 * 1
=
2.5x = 105
Then you divide everything by 2.5
The answer is 42
