The first painter can finish a paint job in 2 hours. The second painter can finish the same job in 8 hours. How long would it ta
ke them to finish the job if they were working together?
1 answer:
I believe it takes 1 3/5 hrs for them to finish the job together
You might be interested in
use cross products
(3r+6) *2 = 9*(2r-4)
6r+12 = 18r-36 distribute
12 = 12 r -36 subtract 6r from each side
48 = 12r add 36 to each side
4=r divide by 12
Answer:
a). 1/13
There are 4 5s. so 4/52
b). 3/13
12 total jack, king, and queen. 12/52
c). 15/26
30 cards are not face cards so 30/52
Answer:
slope is -3/10
Step-by-step explanation:
-10y=-3x+20
y= -3/10x+,20
Answer:
27,000 feet
Step-by-step explanation:
Let
be the actual length of the pipeline, in feet.
Set up the following proportion:

Cross-multiplying yields 
Answer:

Step-by-step explanation:
Given
The attached triangle
Required
Find x
Using law of sine, we have:

So, we have:

Make x the subject



-- approximated