After 4 weeks you have put 4 x 200 = 800 into the account, if the balance is 1700 you must have had 1700-800 = 900 in the account as an opening balance.
<span>Balance on the account = 900 + 200 x 4 = 1700 </span>
<span>For x weeks </span>
<span>y = 900 + 200 x </span>
<span>y-900 = 200 x </span>
<span>subtract 800 each side </span>
<span>y-900-800 = 200x - 800 </span>
<span>y-1700 = 200(x-4)</span>
Use a calculator is gives you the answers
Answer:
Step-by-step explanation:
(-3x+x)=kx+9
-2x=kx+9
-2x-kx=9
x(-2-k)=9
x=9/(-2-k)
A. Robert purchased a 36-inch piece of wood
Answer:
-1.6
i think
Step-by-step explanation:
you have to do y2-y1
x2-x1
then divide y by x
hope this helped