You times 40 by 6 because you are seeing how many papers there are in all 6 so it will be 240 (:
Answer:
(a)
Step-by-step explanation:
To determine if the points are a solution to the equation.
Substitute the coordinates of the point into the left side of the equation and if equal to the right side then they are a solution.
(2, 5)
- 3(2) + 4(5) = - 6 + 20 = 14 ← True
(4, 6)
- 3(4) + 4(6) = - 12 + 24 = 12 ← False
Thus (2, 5) is the only solution to the equation → (a)
Answer:
it will take them about 4.44 hours to complete the job when they work together
Step-by-step explanation:
If carpenter B can complete the job in 8 hours, then the portion (fraction) of the job done in the unit of time (one hour) by this carpenter is 1/8
The assistant A can complete the same job in 10 hours, so the fraction of the job done by him in one hour is: 1/10
When they work together, we don't know what time it will take (we name it "x" hours). Therefore the fraction of the job dome in these x hours would be: 1/x
Now we can set the equation that says that the fraction of the job done by B in the unit of time plus the fraction done by A should equal the fraction completed when they work together:
Therefore, it will take them about 4.44 hours to complete the job when they work together.