Answer:
87
Step-by-step explanation:
you already had it picked :) you got this :D
CATERING TOTAL COST F(X) = 10X + 300
TOTAL REQUIRED 14X
10X + 300 = 14X
10X - 14X = -300
-4X = -300
4X = 300
X= 300/4
X=75 <------------------SOLUTION
Quantity of $2.20 fuel<span> = total quantity - quantity of </span>$3.00 fuel<span>. However .... As an example, suppose we </span>had<span> 80 </span>gallons<span> if the </span>$3.00 gas. Then it ... From this you can observe that the quantities ofeach type<span> of </span>gas<span> are directly linked. ... If we </span>have<span> none of this then we </span>have all<span> of the 280 </span>gallons<span> as the $2.20 </span>gas<span>.</span>
49.10 = 5 + 2.10 * x
x = 21