Sally can paint a room in 4 hours while it takes Steve 8 hours to paint the same room. How long would it take them to paint the
room if they worked together?
1 answer:
Sally paints a room in 4 hours, so in 1 hour she paints 1/4 of a room.
Steve paints a room in 8 hours, so in 1 hour she paints 1/8 of a room.
So,
1 hour -----> 1/4 + 1/8 of a room
x hour -----> 1 of a room
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Step-by-step explanation:
a.2+9-5=6
b.-9+1=-8
c.7(-36+50/120)2
=7(24/120)2
Relatives have more than classmates
13 = r/9 + 8
subtract 8 from each side
5 = r/9
multiply 9 from each side
r = 45
are you in algebra 1? i have trouble on this to, try simplifying both sides of the equation as best as you can, maybe that could help
