A classroom will seat 80 people. If 56 seats are filled, what percentage of the seats are filled?
what is correct?
To find the percentage of seats that are filled, we need to divide the number of filled seats by the total number of seats and multiply by 100.
56 seats are filled out of a total of 80 seats.
(56/80) * 100 = 0.7 * 100 = 70%
Therefore, 70% of the seats are filled.
Michi put $7.50 worth of gas in her car. Two co-workers who were riding to work with her offered to share the cost of the gas. One paid 1/2 of the total amount and the other paid 1/3 of the total amount. How much of the total amount was left for Michi to pay?
what is correct?
To find the amount that Michi had to pay, we first need to calculate the total cost of the gas.
One co-worker paid 1/2 of the total amount, which is 1/2 * $7.50 = $3.75.
The other co-worker paid 1/3 of the total amount, which is 1/3 * $7.50 = $2.50.
The total amount paid by the co-workers is $3.75 + $2.50 = $6.25.
To find the amount left for Michi to pay, we subtract the total amount paid by the co-workers from the total cost of the gas: $7.50 - $6.25 = $1.25.
Therefore, Michi had to pay $1.25.
A bookshelf is 4-3/4 feet wide. How many 3-inch-wide books will fit on the shelf?
what is correct?
To find the number of 3-inch-wide books that will fit on the shelf, we need to divide the width of the shelf by the width of each book.
The width of the bookshelf is 4-3/4 feet, which can also be written as 4 + 3/4 = 4.75 feet.
We need to convert the width of each book to the same unit as the shelf, so 3 inches will be converted to feet. There are 12 inches in 1 foot, so 3 inches is equal to 3/12 = 1/4 foot.
Now we can divide the width of the shelf by the width of each book to find how many books will fit: 4.75 / (1/4) = 4.75 * 4 = 19.
Therefore, 19 books that are 3 inches wide will fit on the shelf.