90° becuase 60+30 = 90 and 90+90=180
How much part can sally paint in an hour ?
a ÷ 7 = a/7
And what about Steve ?
a ÷ 9 = a/9
Where, a is the total area of the room.
So, let the time taken by both of them to paint the room together be 't'
So,
t(a/7 + a/9) = a
t(9a/63 + 7a/63) = a
t(16a/63) = a
t = 63/16 ≈ 4 hr
C=2πr=2·π·13≈81.68141
C=81.68
1 mile = 1760 yds
Therefore, if we multiply 1760 by 10 we will get 10 miles in yards
1760 * 10 = <em>17600 yards</em>
Hope it was helpful and clear.
Cheers,
Answer:
Hello ♡
The answer to your question is 7.3333333333 .
Step-by-step explanation:
Hope this helps u ;)
