Question

Dairon needs to make 30 pieces of string 3/8 inch in length. He has already cut a 4 7/8 inch piece of stringinto pieces that are 3/8 of an inch long each. How many more pieces of string does he need?

Answer 1

He needs 17 more pieces;

`17\text{ pieces}`

Step-by-step explanation:

Given that Dairon needs to make 30 pieces of string 3/8 inch in length.

`(3)/(8)\text{ inch per piece}`

And He has already cut a 4 7/8 inch piece of string;

`4(7)/(8)=(4(8)+7)/(8)=(32+7)/(8)=(39)/(8)\text{ inch}`

The number of pieces that can be cut from the 4 7/8 inch piece is;

`(39)/(8)/(3)/(8)=(39)/(8)*(8)/(3)=(39)/(3)=13\text{ pieces}`

The number of pieces he needs more is;

`n=30-13=17\text{ pieces}`

Therefore, he needs 17 more pieces;

`17\text{ pieces}`