Hank cut some blocks of wood that were [tex]$2 \frac{3}{8}$[/tex] feet long. If eight blocks were laid end-to-end, how long would the wood blocks be?

A. [tex]$18 \frac{5}{8}$[/tex] feet
B. [tex][tex]$18 \frac{7}{8}$[/tex][/tex] feet
C. 19 feet
D. 18 feet



Answer :

To determine how long the wood blocks would be if eight blocks, each with a length of [tex]\(2 \frac{3}{8}\)[/tex] feet, were laid end-to-end, we follow these steps:

1. Convert the mixed number to an improper fraction:
- The mixed number [tex]\(2 \frac{3}{8}\)[/tex] consists of a whole number part and a fractional part.
- Here's how we convert this to an improper fraction:
[tex]\[ 2 \frac{3}{8} = 2 + \frac{3}{8} \][/tex]
- Converting the whole number part (2) to a fraction with the same denominator as the fractional part (8):
[tex]\[ 2 = \frac{16}{8} \][/tex]
- Adding the fractions together:
[tex]\[ \frac{16}{8} + \frac{3}{8} = \frac{19}{8} \][/tex]

2. Determine the total length when 8 blocks are laid end-to-end:
- Each block is [tex]\(\frac{19}{8}\)[/tex] feet long.
- So for eight blocks, multiply the length of one block by 8:
[tex]\[ \text{Total length} = 8 \times \frac{19}{8} \][/tex]
- Simplifying the multiplication:
[tex]\[ \text{Total length} = \frac{19}{8} \times 8 = \frac{19 \times 8}{8} = 19 \][/tex]
- The result is 19 feet.

3. Convert the total length back to a mixed number if necessary:
- In this case, the total length is already a whole number, so no further conversion is needed.

4. Verify the result:
- If we consider the total length computed, it's clear:
[tex]\[ 8 \times 2 \frac{3}{8} = 19 \text{ feet} \][/tex]

Thus, when eight blocks are laid end-to-end, the total length of the wood blocks is:
19 feet.

Among the given options, the correct choice is:
- 19 feet.