Answer:
The cost of the one word is $30 .
Option (b) i.e [tex] \frac{8.4- 6}{0.08}[/tex] is used to determine the total number of words in the ad mr.grant placed.
Step-by-step explanation:
Let us assume that the number of words in the ad be x.
As given
Mr.grant spent $8.40 to place an ad in the newspaper.
This price included one time fee of $6.00 plus $0.08 per word.
Than the equation becomes
8.40 = 6 .00 + 0.08x
Simplify the above
8.4 = 6 + 0.08x
8.4 - 6 = 0.08x
[tex]x = \frac{8.4- 6}{0.08}[/tex]
[tex]x = \frac{2.4}{0.08}[/tex]
[tex]x = \frac{24\times 100}{8\times 10}[/tex]
[tex]x = \frac{2400}{80}[/tex]
x = $30
Therefore the cost of the one word is $30 .
Option (b) i.e [tex] \frac{8.4- 6}{0.08}[/tex] is used to determine the total number of words in the ad mr.grant placed.
