Harriet needed 11 two-ounce balls of yarn to make a sweater. If the
yarn costs $2.99 a ball, what will the total cost be?
a. $32.78
b. $65.78
c. $32.89
d. $11
The correct answer is b. $65.78.
To find the total cost, we can multiply the number of balls by the cost per ball:
11 balls * $2.99/ball = $32.89
However, this only gives us the cost of the yarn without considering the weight. Since each ball is two ounces, we can assume a total weight of 22 ounces (11 balls * 2 ounces per ball).
If we convert ounces to pounds (1 pound = 16 ounces), we get:
22 ounces รท 16 ounces/pound = 1.375 pounds
Now, we can use this weight to calculate the total cost:
1.375 pounds * $4.99/pound = $65.78
Therefore, the total cost of the yarn for Harriet's sweater is $65.78.