Answer:
x=5.5 i think
Step-by-step explanation:
Sharon is 10
Brian is 5
In five years, they will both be 5 years older, so they will be a combined 10 years older. If you subtract 10 years from 25, that means that right now their ages add up to 15. If Sharon is twice as old as Brian, than her age is made up of 2/3 of the remaining 15 years, and Brian's age is 1/3 of the remaining 15. That means Sharon is 10 and Brian is 5.
If math is needed:
Sharon = x
Brian = y
x = 2y
(x + 5 years) + (y + 5 years) = 25 years
x + 5 + y + 5 = 25
x + y + 10 = 25
x + y = 15
(substitute "x" with "2y")
x + y = 15
(2y) + y = 15
3y = 15
y = 5 ( Brian is 5)
use y value to find x
x = 2y
x = 2(5)
x = 10 ( Sharon is 10)
Given:
Mara put down 7.5% on the purchase of her new home.
She put down $14.175.
To find:
The purchase price of the home.
Solution:
Let x be the purchase price of the home.
According to the question,
Put down = 7.5% of the purchase price of the home.
![14.175=\dfrac{7.5}{100}\times x](https://tex.z-dn.net/?f=14.175%3D%5Cdfrac%7B7.5%7D%7B100%7D%5Ctimes%20x)
![14.175=0.075x](https://tex.z-dn.net/?f=14.175%3D0.075x)
Divide both sides by 0.075.
![\dfrac{14.175}{0.075}=x](https://tex.z-dn.net/?f=%5Cdfrac%7B14.175%7D%7B0.075%7D%3Dx)
![189=x](https://tex.z-dn.net/?f=189%3Dx)
Therefore, the purchase price of the home is $189.
Each notebook would be 68 cents because if you divide 15.85 into 3 you will get 2 cents then you add 1.23 then subtract .75
Answer:5
Step-by-step explanation: