Brennon should make about $212.05. since 153/18 is 8.5, all we do is multiply 8.5 by 25. that gives us 212.5, convert it to money and you get $212.05.
1+1= 2
Big brain >:3 Ty for the points tho ^^
Let x be the time at 11 mph, and let y be the time at 15 mph.
x + y = 45 ............(1)
Therefore:
y = 45 - x ............(2)
Now we can write the equation for the total calories required:
6x + 9.75y = 300 ........(3)
Plugging the value for y from equation (2) into equation (3), we get:
6x + 9,75(45 - x) = 300 .......(4)
which simplifies to:
-3.75x = -138.75
x = -138.75/-3.75 = 37 minutes.
The answer is 37 minutes at 11 mph and 8 minutes at 15 mph.