Answer:
4.5 hours
Step-by-step explanation:
let t be the time elapsed
Therefore, we can set up a system of equations and solve accordingly
2t + 16.5 = 4t + 7.5
2t = 9
t = 4.5 hours more till they paint the same amount in square feet
Answer:
D. 192 in²
Step-by-step explanation:
Answer:
10560 feet
Step-by-step explanation:
he would walk 2 miles in a hour which is equivalent to
Answer:
x = 3, y = 19
Step-by-step explanation:
x = 3, y = 4x + 7
Substitute x =3 into the second equation
y =4*3+7
y = 12 +7
y = 19
x = 3, y = 19
3x-12>15
3x>15+12
3x÷3>27÷3
x>9
