√5 = 5^(1/2)
Multiplying two number with the same base has as result a number with the same base and the sum of the exponents so:
1/2 + 3 = 7/2
which means
5^3 x 5^(1/2) = 5^(7/2)
I set Jon an equation and solved for number of hours
2+x=2x-15
>> 2+15=2x-x
>> 17 = x
So the answer is <u>17</u>
The mid point is 15 because it is in the middle of 10 and 20