16/120+12/120+30/120+24/120=82/120
1-82/120=19/60
Assuming the +'s are actually x's 1/2 of 3 is 1.5 and 1.5 divided by 7 is 1.5/7.(answer is 1.5/7) hopefully I'm right.
Answer:
What are the options?
Step-by-step explanation:
I'll do it once it the options
The equation which is supposed to help you is this one:
a^2 - b^2 = (a+b) (a-b)
So, what we need to do here is apply this equation:
k^2 - 9h^2 =
k * k - (3h)^2 =
(k + 3h) (k - 3h)
Answer:
The cost of the one word is $30 .
Option (b) i.e
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
![x = \frac{8.4- 6}{0.08}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B8.4-%206%7D%7B0.08%7D)
![x = \frac{2.4}{0.08}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B2.4%7D%7B0.08%7D)
![x = \frac{24\times 100}{8\times 10}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B24%5Ctimes%20100%7D%7B8%5Ctimes%2010%7D)
![x = \frac{2400}{80}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B2400%7D%7B80%7D)
x = $30
Therefore the cost of the one word is $30 .
Option (b) i.e
is used to determine the total number of words in the ad mr.grant placed.