multiply by 8 on both sides
(20)8 - 8(4b/8) = (18)8
160 - 4b = 144
subtract 160 on both sides
160 - 160 - 4b = 144 - 160
-4b = -16
divide by -4 on both sides
-4b/-4 = -16/-4
b = 4
Answer:
4123
Step-by-step explanation:
A=Pert,
where A is the balance of the account, P is the principal, r is the annual interest rate (as a decimal), and t is the time (in years). We are given that P=2800, r=0.043, and t=9. Substituting the values into the formula and using a calculator to evaluate, we find
A=Pert=2800e(0.043)(9)≈4123.16
Answer:
30 hours
Step-by-step explanation:
Distance = Speed * Time
We can use that formula to plug in the numbers given.
1778mi = 61.7mph * Time
1778/61.7 = 28.817 (approx.)
So the answer will be about 30 hours
Rocky because of the product rule which says that when multiplying two terms with the same base you add the exponents.
