1/4 mile per minute is the average speed.
Set h to 640 and solve for t:
640 = -490t^2 + 1120t
Subtract 640 from both sides:
-490t^2 + 1120t - 640 = 0
The formula to solve a quadratic equation is:
x = -b -/+ sqrtroot (b^2-4ac)/(2a) where a = -490, b = 1120 and c = -640
Solve:
x = -1120 -/+ sqrtroot (1120^2-4(-490)(-640) )/ 2(-490)
x = 8/7 = 1.1428 = 1.14
Time was 1.14 seconds
There are 16 cups in 1 gallon:
16 x 2.75 = 44 cups
Answer: $20
Step-by-step explanation:
8 divided by 12 = .67
.67 times 30
The answer is false 22 isn’t a multiple of 4
