Answer:
W=9
Step-by-step explanation:
=> 10-1=W (Transpose 1 of R.H.S to L.H.S)
=> 9=W
Hope this helps you.
Subsiutte
x,y
-10,-8
-9,-7
-8,-6
-7,-5
-6,-4
-5,-3
-4,-2
-3,-1
-2,0
-1,1
0,2
1,3
2,4
3,5
4,6
5,7
6,8
7,9
8,10
9,11
10,12
Answer:
a) 15 feet
b) 192 feet
Step-by-step explanation:
Please see attached picture for full solution.
Assuming they work until their cost become the same, obviously.
The difference between the first charge of painter A and painter B = 376 - 280 = 96.
The hourly cost difference between painter B and painter A = 15 - 12 = 3.
So, painter A in the first hour has 96 more dollars than painter B, and as every hour pass, the difference goes down by 3 (as painter B gets 3 more dollars every hour)
Therefore, it would take 96 : 3 = 32 hours for the cost to be the same
Recheck : After 32 hours, painter A has 376 + 32 x 12 = 760 (dollars)
painter B has : 280 + 15 x 32 = 760 (dollars)