# Wood

Peter chops wood. If they cut down a half hours a day he ended work in 9 days. But Peter needs to end work 3 days earlier. How many minutes a day should cut down?

Result

x =  45 m

#### Solution:

9*30=(9-3)*x

6x = 270

x = 45

Calculated by our simple equation calculator.

Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

#### To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

## Next similar examples:

1. Cakes
Grandmother baked cakes. Half of its was poppy, quarter with plum jam and 16 cheesecakes. How many cakes she baked in total?
2. Time
16.2 days ..... how many hours is it?
3. Clock
How many hours are 15 days?
4. Father and son
Father is 44 years old, his son 16 years. Determine how many years ago was the father five times older than the son.
5. Bed time
Tiffany was 5 years old; her week night bedtime grew by ¼ hour each year. If, at age 18, her curfew time is 11pm, what was her bed time when she was 5 years old?
6. Equation 29
Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
7. Six years
In six years Jan will be twice as old as he was six years ago. How old is he?
8. Unknown number 11
That number increased by three equals three times itself?
9. Simple equation
Solve for x: 3(x + 2) = x - 18
10. Negative in equation
2x + 3 + 7x = – 24, what is the value of x?
11. One-third
A one-third of unknown number is equal to five times as great as the difference of the same unknown number and number 28. Determine the unknown number.
12. Unknown number
Identify unknown number which 1/5 is 40 greater than one tenth of that number.