The answer is to the question is 9
D=12
Because if you write down the equation 4x-8=40 and plug in 12. 4 times 12 is 48
. 48-8 equals 40
Answer:
1/4 of an hour, or 60/4=15, 15 minutes.
Step-by-step explanation:
24/1=6/x
cross product
1*6=24*x
6=24x
x=6/24
x=1/4