1/10
Step-by-step explanation:
9/2 is 4.5 so,
9/2 × 1/15= the answer
9/30=1/10
Answer:multiply 470 by 3
Step-by-step explanation:
Since the rate has been solved and it is 470 you multiply 470 by 3 to find out how far it traveled in 3 hours.
9.6 cause it can be a fraction or ratio
---------------------------------------------------------------------------
Irina:
---------------------------------------------------------------------------
Irina takes 7 hours to paint the room.
In 1 hour, Irina can paint 1/7 of the room.
---------------------------------------------------------------------------
Paulo:
---------------------------------------------------------------------------
Paulo takes 6 hours to paint the room.
In 1 hour, Paulo can paint 1/6 of the room.
---------------------------------------------------------------------------
Both paint together:
---------------------------------------------------------------------------
In one hour they can paint (1/7 + 1/6) of the room.
1/7 + 1/6 = 13/42
So, it takes 13/42 of the room takes 1 hour.
---------------------------------------------------------------------------
Find the number of hours
---------------------------------------------------------------------------
13/42 of the room = 1 hour
Whole room = 1 ÷ 13/42
Whole room = 1 x 42/13
Whole room = 3.23 hours
---------------------------------------------------------------------------
Answer: They need 3.23 hours to paint the room.
---------------------------------------------------------------------------
