Answer:
69 hours
Step-by-step explanation:
The painter spends 3 hours working on a painting.
The sculptor spends 23 times as long as the painter.
The amount of time the sculptor spent is:
23 * 3 = 69 hours
The sculptor works for 69 hours.
3x+y=5 & 5x-4y=-3
3x+5x=8x+y-4y=-3
8x+y-4y=-3
8x+3y=-3
-3 -3
8x=-6
(-3,7)
9.5