Each paper clip is 7/8 of an inch long and cost three cents exactly enough paper clips are laid end to end to have a total length of 56 inches. What is the total cost of these paper clips

Respuesta :

To find the total cost, we need to determine how many paper clips are needed to cover a total length of 56 inches.

Let \( x \) be the number of paper clips needed. Since each paper clip is \( \frac{7}{8} \) of an inch long, the total length covered by \( x \) paper clips is \( \frac{7}{8}x \) inches.

Setting this equal to the given total length of 56 inches:

\[ \frac{7}{8}x = 56 \]

Now, solve for \( x \):

\[ x = \frac{56}{\frac{7}{8}} \]

\[ x = 64 \]

So, you need 64 paper clips to cover a total length of 56 inches.

Now, to find the total cost:

\[ \text{Total cost} = \text{Cost per paper clip} \times \text{Number of paper clips} \]

\[ \text{Total cost} = 3 \text{ cents} \times 64 \]

\[ \text{Total cost} = 192 \text{ cents} \]

Therefore, the total cost of these paper clips is $1.92.