Answer:
23.4 years.
Step-by-step explanation:
7400 dollars is placed in an account with an annual interest rate of 7%.
Now, let us assume that the interest is compounded annually and it will take x years for account value to reach 36000 dollars.
Hence, from the formula of compound interest, we can write that
⇒
Taking ln both sides we get,
x ln (1.07) = ln (4.865)
⇒ x = 23.4 years.
54/4.5 = 12
Set it up as long division, with 54 "inside" the division sign and 4.5 outside. Then you have to move the decimal on 4.5 to the right once, which will give you 45 on the outside. You also have to move the decimal over 1 more place on the 54, which will give you 540 on the inside. Then figure out how many times 45 can go into 54, which is once. Then subtract 45 from 54, which will give you 9. Then you are left with 90 on the inside and 45 goes into that 2 times.
Answer:
x=1
Step-by-step explanation:
Answer:
v = 72 km/h
Step-by-step explanation:
Given that,
The distance covered by the Patrick, d = 288 km
Time taken, t = 4 hours
We need to find the average speed of Patrick. We know that the average speed of an object is equal to the total distance covered divided by total time taken. Let it is v. So,
So, his average speed is equal to 72 km/h.
It’s probably C and B. Is it right?