Answer:
28
Step-by-step explanation:
2y+12=3y-16
12=y-16
y=28
She would have 4 hours of free time because 25% is 1/4 of 100% and 1 hour is equal to 25% so 1 time 4 is equal to 4.
Combine like terms, then divide by 7
Answer:
81 units
Step-by-step explanation:
Given data
We are given the function for the height, the height is a function of time t
h=-16t^2+75t
Hence for t= 3 , let us substitute and find the height h
h=-16(3)^2+75(3)
h= -16*9+ 225
h= -144+ 225
h= 81
Hence the height at 3 seconds is 81 units
