Answer:
see below
Step-by-step explanation:
The expression for the account is
a) 3600 -400M where m is the number of months
b) We want the expression to equal 2000
3600 -400M = 2000
c) 3600 is the initial amount in the account
400 is the amount that the account goes down each month
M is the number of months
2000 is the amount left in the account
Answer:
0.7, 2/15, 1/200, 0.004
Step-by-step explanation:
Answer:
see below. Quotient is (x +1).
Step-by-step explanation:
The general process is identical to numerical long division. You find a quotient term, multiply that by the divisor and subtract the result from the dividend to make a new dividend.
For polynomial long division, the quotient term is the ratio of the highest-degree terms of the dividend and divisor, so is easy to calculate without the guesswork involved in numerical long division.
Answer:
x = (c+a)/2
y = (c-a)/2
Step-by-step explanation:
Add the two equations and you get ...
(x +y) +(x -y) = (c) +(a)
2x = c+a
x = (c+a)/2
--
Subtract the second equation from the first and you get ...
(x +y) -(x -y) = (c) -(a)
2y = c-a
y = (c-a)/2
_____
Comment on this problem
This is what I call a "sum and difference" problem. The solution shown here is (obviously) the generic solution to such a problem. Remembering this can get you quickly to the answer any time you're given the sum of two unknowns and their difference.
