The correct answer is 10/15, simplified to 2/3.
Answer:
I thank it is D
Step-by-step explanation:
Answer:
x = 30
Step-by-step explanation:
30 + 2x = 90
2x = 60
x = 30
Given
MINING A mine produces 42.5 tons of coal per hour.
Find out the how much coal will the mine produce in 9.5 hours.
To proof
As given in the question
A mine produces 42.5 tons of coal per hour i.e in the 1 hour mine produces the 42.5 tons .
Let us assume that the coal produce in the 9.5 hours be x.
than the equation becomes
x = 9.5 × 42.5
x = 403 . 75 tons
403 . 75 tons coal will the mine produces in the 9.5 hours.
Hence proved