Question

*21. write \\(\frac{14}{5}\\) as a mixed number
answer:
*23. at $2.39 per pound, what is the cost of four pounds of grapes?

Explanation:

Problem 21:

Step1: Divide numerator by denominator

Divide 14 by 5. \( 14 \div 5 = 2 \) with a remainder of 4.

Step2: Write as mixed number

A mixed number is composed of a whole number and a proper fraction. The whole number is the quotient (2), the numerator of the fraction is the remainder (4), and the denominator remains the same (5). So, \( \frac{14}{5} = 2\frac{4}{5} \).

Step1: Recall the cost formula

The cost of an item is calculated by multiplying the price per unit (price per pound) by the number of units (number of pounds). The formula is \( \text{Cost} = \text{Price per pound} \times \text{Number of pounds} \).

Step2: Substitute the values

Here, the price per pound is $2.39 and the number of pounds is 4. So, we calculate \( 2.39 \times 4 \).

Step3: Perform the multiplication

\( 2.39 \times 4 = 9.56 \).

Answer:

\( 2\frac{4}{5} \)

Problem 23: