Answer:
2x-y-13=0
Step-by-step explanation:
-- Kenny's weight is 6/7 of Melvin's weight.
-- Melvin's weight is 7/7 of Melvin's weight.
-- The ratio of Kenny's weight to Melvin's weight is (6/7) / (7/7) = 6/7 .
The formula for the amount A in an account with principal P and interest rate r compounded annually for t years is
... A(t) = P(1+r)^t
You want to find A when P=400, r=0.05, and t=3. Substituting those values gives you
... A(3) = 400·(1 +0.05)³
The appropriate choice is
... A. A(3) = 400·(1 +0.05)³
After the second, it will be 50, after the third it will be 20, and after the fourth it will be 8. The answer is C
Hope this helps!
Square roots the square root of 1 is one square root of 2 is 4 square root of 3 is 9 and ect.
