Answer:
w=32
Step-by-step explanation:
w/4 = 8
4/1 * w/4 = 8*4
w=32
Bob can do a tenth of the roof in an hour
James can do a sixteenth in an hour
Bob can do 16/160 of the roof in an hour
James can do 10/160 of the roof in an hour
Together they do 26/160 of the roof in an hour
160/26 = 6.15 (to 2 d.p.)
In a circle, a radius perpendicular to a chord bisects the chord.
So
BC = CA
BC = 6 (given)
x (or AC) = 6
Answer = 6 plz tell me if this helps you.
4/7 to a percent is about 57 percent.