An electrician bought 120 feet of electrical wire and used 105 feet of it what percent of wire went unused
a. 15%
b. 12.5%
c. 8.75%
d. 7%

Step-by-step explanation:

105/120= 0.875

In order to obtain a percentage, you move the decimal point to the right two spaces.

Therefore, 0.0875 will be 87.5%

What this tells you is that 87.5% of the wire was used.

So, 100%-87.5%= 12.5% of wire was left over/unused.

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step-by-step explanati∵∵∴∴on:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b