Answer:
son's present age = 30
father's present age=60
Step-by-step explanation:
his son's present age = x years
his father's present age = 2x years
before 20 years his son's age=(x-20) years
before 20 years father's age=(2x-20) years4(x-20)=(2x-20)
4x-80=2x-20
4x-2x=80-20
2x=60
x=30
In unit of batches over days, let r be the planned rate and R be the actual increased rate. The difference between R and r is described as 10 shirts per day.
R-r=10
Rate Time Batches
Planned r 8 1
Actual R 7 1
![\left[\begin{array}{c}r=1/8&R=1/7&R-r=HowManyBatchesInTenShirts\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7Dr%3D1%2F8%26R%3D1%2F7%26R-r%3DHowManyBatchesInTenShirts%5Cend%7Barray%7D%5Cright%5D)
, the number of batches equivalent to 10 shirts.

OneBatch=560*Shirts
Hope This Helps!!!
All of them cause if u didnt have them it wouldent be a question
Answer:
4 1/3
Step-by-step explanation:
:) Can i get Brainliest? :)
Equation
10x1/2+(-6) (-3)
Answer
23