Given:
An elephant drinks 49 gallons of water per day.
A rhinoceros drinks 21 gallons of water per day.
To find:
The total amount of water the animals will drink in 8 days.
Solution:
In each day,
Elephant drinks = 49 gallons
Rhinoceros drinks = 21 gallons
Total amount of water they will drink each day is

They will drink 70 gallons in each days.
So, total amount of water the animals will drink in 8 days is

Therefore, they will drink 560 gallons of water in 8 days.
The total height of the building in the picture has been shown as
x + x + 6
That is, the first two storys have been shown as x feet each and the total height is 26 feet.
That means the two x are actually 20 feet, (if you deduct the 6 feet given)
Total height = x + x + 6
26 = x + x + 6
26 = 2x + 6
Subtract 6 from both sides of the equation
26 - 6 = 2x + 6 - 6
20 = 2x
Divide both sides of the equation by 2 and you now have,
20/2 = 2x/2
10 = x
Therefore, te height of each story is 10 feet!
Answer:
The answer is the second one.
1/2 and 2/3 because they are the biggest numbers.
9/10 and 5/6 because they are the smallest numbers.