Jay can paint a house in 5 hours and david can paint a house in 3 hours. how long will it take them to paint a house if they wor
k together
2 answers:
Since they are working together, you need to add the 5 hours and 3 hours together which if 8 hours.
Then you need to divide the 8 hours to 2.
The answer is 4 hours if Jay and David paint a house together.
5 * 3
= 8
8/2
=4
I hope my answer helped you.
Have a great day!
Jay can paint 1 house in 5 hours
jay can paint 1/5 house in 1 hour
david can paint 1 house in 3 hours
david can paint 1/3 house in 1 hour
ok, so
in 1 hour, they can paint 1/5+1/3 house
1/5+1/3=3/15+5/15=8/15 house
so
8/15 house per hour times x hours=1 house
times both sides by 15/8
x=15/8 hours
x=1 and 7/8 hour
it will take 1 and 7/8 hour or 1.875 hour or 1 hour and 52.5mins
You might be interested in
18-12=6 its a simple math
The answer is 176.44
9,800
Answer:
c
Step-by-step explanation: all you have to do is work it out
Answer:
A'B' = 7.5
Step-by-step explanation:
uhhh
AC = A'C'
4 = 6
×1.5
AB^2 = 4^2 + 3^2
AB^2 = 16 + 9
AB^2 = 25
AB = √25
AB = 5
A'B' = 5 × 1.5 = 7.5
Answer:
seven
Step-by-step explanation: