Answer:
4
Step-by-step explanation:
Don't let fractions fool you.
of a tank in an hour is equal to:
1/12 of a tank in 20 minutes.
Thus we know in an hour, an oil company can fill 3/12 of a tank (60 minutes in an hour).
3 x 4 = 12, and 12/12 = 1(a whole tank), so we multiply 1 (hour) by 4.
Our answer is that it takes 4 hours to fill a tank.
it's 1/3 ⋅ 12 hours
or
3 ⋅ 12 hours
DE = 10
Here, we want to find the value of DE
we use the intersecting chord principle
That will be;
CE * ED = AE * BE
we have;
6 * DE = 5 * 12
DE = (5 * 12)/6
DE = 5 * 2
yes it is right
B. You build credit by using credit cards so b is the answer.