Sam can paint a house in 8 hours. joe can paint the same house in 4 hours. how long does it take them to paint the house together? round to 1 decimal place.

it takes themApproximately 2.7 hours to paint the house together

Step-by-step explanation:

Sam can paint a house in 8 hours. This means that sam's unit rate of working is 1/8

Joe can paint the same house in 4 hours.

This means that Joe's unit rate of working is 1/4

If they work together, it would take them lesser time because they are working simultaneously. This means that their unit rates are additive. Combining their unit rates, it becomes

1/8 + 1/4 = 3/8

Assuming that if they work together, it will take them t hours. Therefore, Their unit rate of working will be 1/t.

Therefore,

3/8 = 1/t

3t = 8

t = 8/3 = 2.667

Approximately 2.7 hours

2.7

Step-by-step explanation:

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled