Answer: r=38.5
Step-by-step explanation:
Use circumference equation 242=2(22/7)r
His age 15 years from now will be x+15.
Three times his age 5 years ago is 3(x-5).
If both are equal, we can write:
![x+15=3(x-5)](https://tex.z-dn.net/?f=x%2B15%3D3%28x-5%29)
The equation representing William's claim is x+15 = 3(x-5).
We can calculate its present age as:
![\begin{gathered} x+15=3(x-5) \\ x+15=3x-15 \\ x-3x=-15-15 \\ -2x=-30 \\ x=\frac{-30}{-2} \\ x=15 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20x%2B15%3D3%28x-5%29%20%5C%5C%20x%2B15%3D3x-15%20%5C%5C%20x-3x%3D-15-15%20%5C%5C%20-2x%3D-30%20%5C%5C%20x%3D%5Cfrac%7B-30%7D%7B-2%7D%20%5C%5C%20x%3D15%20%5Cend%7Bgathered%7D)
His actual age is 15 years.
Answer:
The equation representing William's claim is x+15 = 3(x-5).
His actual age is 15 years.
Answer:
Carrie can write different fractions using different denominators
Step-by-step explanation:
3/4 = 6/8= 9/12
Honestly I couldn't understand most of that but if one gallon of oil is needed to fry 6 potatoes, and he wants to fry 18 potatoes, then he'll end up using 3 gallons
180 / 20 = 9 , so it would take 9 hours . simple .