Answer:80%
Step-by-step explanation:
He needs to make 40 deliveries and he has allready done 32.
if 40 is the 100%
32 is 80%
Using Algebra:
40 - 100%
32 - x%
Therefore:
X%= 32*100%/40 = 80%
Answer:
-21
Step-by-step explanation:
Let x = the total cost of gas, dollars.
Originally, each of the three friends was to pay x/3 dollars each.
Finally, with two more friends added, the cost became x/5 dollars each.
The savings for each of the original three friends is $11, therefore
x/3 - x/5 = 11
(2x)/15 = 11
x = (11*15)/2 = $82.50
Answer: The total cost of gas is $82.50
Answer:
Step-by-step explanation:
Solution in the attachment box
Draw the triangles it is important
Answer:
t = 3 seconds
Step-by-step explanation:
Here h(t) = -16t^2 + 144.
When the quarter hits the ground, its height will be 0 feet. Letting h(t) = 0 results in -16t^2 + 144 = 0, or 16t^2 = 144, or
144
t^2 = ------------ = 36/4 = 9 seconds^2
16
Therefore, the time, t, required for the quarter to hit the ground is t = √9, or t = 3 seconds
