7/18! This is because if you double both the top and bottom of 8/9 you get 16/18. Half of 18 is 9. So if we use half a yard, 9/18, and we subtract it from 16/18, we get 7/18!
Answ
Step-by-step explanation:
−42−5i 2y−1(y−2)(y−2)
Answer: Second option is correct.
Step-by-step explanation:
Since we have given that
Amount of quarts of acid and water = 5
Percentage of acid = 40%
So, Amount of acid is given by
Amount of water is given by
So, we need to find the amount of water must be added to the mixture to get weakened to 30% acid.
Let x amount of water is added to mixture, so that water gets 70% of mixture and acid becomes 30% of mixture.
According to question,
Hence, Second option is correct.