It takes Tim 4 hours to clean a house and it takes 3 hours for Amanda to do the same job. How long will it take for both of them to clean the house together?

1  5/7 hours

≈ 1 h 43 m

Tim 4 hours => 1 hours = 1/4 house

Amanda 3 hours => 1 hours = 1/3 house

Both 1 hour = ³⁾1/4 + ⁴⁾1/3 = (3+4)/12 = 7/12 house

How long will it take for both of them to clean the house together ?

12/12 (full house) : 7/12 =

= 12/12 ₓ 12/7

= 12/7 hours

= 1  5/7 hours

≈ 1 h 43 m

anser is a

step-by-step explanation:

negitive slope

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it