L = length w = width h = height
A = lwh
A = (12)(3)(3)
A = 108
The cube is 108cm^2
( x-5)/-2=(x-1)/-3
Cross multiply
-3(x-5)=-2(x-1)
Distribute
-3x +15 = -2x +2
Add 2x to both sides
-x +15 = 2
Subtract 15 from both sides
-x = -13
x=13
Answer:
1 hour and 7 minutes
Step-by-step explanation:
- set up two equations: =
- cross multiply: 4.42x =294
- solve for x: 294 ÷ 4.42 = 66.52 or 67 minutes
The question is asking for hours rather than minutes so...
- 1 hour is 60 minutes
67 min - 60 min = 7 min
Therefore, it would take 1 hour and 7 minutes to fill a 294-gallon hot tub.
Answer:
Step-by-step explanation:
4x- 8x-90
= -4x - 90
= -2(2x + 45)