Who even knows that's what Google is for
Answer:
Hence the weekly earnings of Nghiep= $136
Step-by-step explanation:
Let the weekly income of Nghiep be $ x.
As it is given that:
- Nghiep gave his mother half of his weekly earnings i.e. the amount he gave to his mother= $ (x/2).
So now we will be left with= $(x/2).
- Next he then spent half of what was left on a new shirt.
so the amount he spent on his shirt= $ (x/4)
Now he will be left with = $ (x/4).
Now it is given that the amount he had after spending on his shirt and giving to his mother= $ 34
i.e. 
Hence, the weekly earnings of Nghiep= $136.
The slope is 4/3. just use the formula.
Answer:
6 years
Step-by-step explanation:
So each person's age can be represented as a linear equation, since each year our age increases by 1. It can be represented in the slope-intercept form: y=mx+b. The slope in this case is going to be 1, since the time is going to be years, and each year everyone's age goes up by 1 (of course if you're still alive...) and y-intercept in this case represents their current age.
So the father can be represented as: y=x+38
The sons can be represented as: y = x+13 and y=x+5
The daughter can be represented as: y=x+8
So adding up all his children you get:
(x+13)+(x+5)+(x+8)
This gives you the equation:
3x+26
Now set this equal to the father's age to solve for x (in this context it's years)
3x+26=x+38
Subtract from both sides
2x+26=38
Subtract 26 from both sides
2x=12
Divide both sides by 2
x=6
So in 6 years the father will be the same age as his children put together
