Answer:
x=1
Step-by-step explanation:
14+2x+7=9x
2x-9x=7-14
-7x= -7
x= -7/-7
x=1
This is a working backwards problem. You know he has $35 at the end. Before he gave his brother $5, he would have $40, which is half of what he had before he bought the clothes, so he would have had $80. Before he spent the $40 on shoes, he would have had $120, so the answer is $120.
The ostrich can run 20 miles in 40 minutes.
<u>Solution:</u>
Given that, An ostrich run 6 mile in 12 minutes
We have to find how far he could come in 40 minutes
Now, according to the given information
Ostrich runs 6 miles ⇒ 12 minutes
Then, “n” miles ⇒ 40 minutes
Now, by criss cross multiplication we get,
![\begin{array}{l}{\rightarrow 6 \times 40=n \times 12} \\\\ {\rightarrow 40=n \times 2} \\\\ {\rightarrow n=20}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7D%7B%5Crightarrow%206%20%5Ctimes%2040%3Dn%20%5Ctimes%2012%7D%20%5C%5C%5C%5C%20%7B%5Crightarrow%2040%3Dn%20%5Ctimes%202%7D%20%5C%5C%5C%5C%20%7B%5Crightarrow%20n%3D20%7D%5Cend%7Barray%7D)
Hence, the ostrich can run 20 miles in 40 minutes
![64\% \ of \ 75=64\% \times 75= \frac{64}{100} \times 75=\frac{16}{25} \times 75=16 \times 3=48](https://tex.z-dn.net/?f=64%5C%25%20%5C%20of%20%5C%2075%3D64%5C%25%20%5Ctimes%2075%3D%20%5Cfrac%7B64%7D%7B100%7D%20%5Ctimes%2075%3D%5Cfrac%7B16%7D%7B25%7D%20%5Ctimes%2075%3D16%20%5Ctimes%203%3D48)
64% of 75 tiles is 48 tiles.