2.4 hours
You can get this by setting up the equation:
x/4 + x/6 = 1
Where x is equal to the amount of hours spent working. In this equation x/4 would be Doug. In 4 hours he would paint on room. x/6 would be Elaine. When you add them together using common denominators, you can find x.
An equivalent expression would be 6(8x - 5)
Answer:
3/4
Step-by-step explanation:
- cos (G) = adjacent/opposite
- 4 is the opposite side and 3 is the adjacent