Twelve

Twelve students work on a week forestry brigade. One hundred spruces will receive x CZK, one hundred pine y CZK. How many receive each one students did in one day if they planted a total of 25,000 spruces per week and 30,000 pine trees? Express by expression.

Result

z = (Correct answer is: fr(125,42) * x + fr(25,7) * y)

Step-by-step explanation:

$$\begin{gathered} z=25000\mathrm{/}100\cdot x\mathrm{/}12\mathrm{/}7+30000\mathrm{/}100\cdot y\mathrm{/}12\mathrm{/}7 \\ z={\displaystyle \frac{125}{42}}\cdot x+{\displaystyle \frac{25}{7}}\cdot y \end{gathered}$$

Try another example

Related math problems and questions:

• Brigade
  On a weekly forest brigade operates 12 students. After plant one hundred spruces get x CZK, anfter one hundred pines y CZK. How many CZK got one student for one day if planted spruces 25000 and 30000 pines week?
• Forestry workers
  In the forest is employed 56 laborers planting trees in nurseries. For 8 hour work day would end job in 37 days. After 16 days, 9 laborers go forth? How many days are needed to complete planting trees in nurseries by others if they work 10 hours a day?
• Snack
  CZK 450 was paid for a snack for 30 pupils. How many CZK will we pay for the same snack for 28 pupils?
• Six workers
  Six workers earned a total of CZK 12,600 per week on the construction site (5 working days). How much do 7 workers earn in 10 days with the same daily average salary?
• Profitable company
  Three businessman decide to open up their own company. They agree to distribute the yearly profits made in the same ratio as their initial investments. They invest R 50 000, R 75 000 and R25 000, respectively. The profit made by the company in the first y
• Three workers
  Three workers got paid for work. First earn € 50, the second € 100 and third € 60. For further work should receive together € 735. How do you divide that amount in order to be distributed in the same proportion as the first job?
• An average a day
  Forest workers planted 96 trees on Monday, 120 trees on Tuesday, and 61 trees on Wednesdays. How many trees did she plant in the last day of Thursday, if she planted an average of 105 trees a day?
• Working time - shortening
  The media often speculates about the change (especially to shorten) the working time of the five-day eight-hour working week to another working model. Calculate how many hours a day the employee would have to work a day at 3-day work week if he must work
• Painting rooms
  If Dano paints three hours daily, he complete in 7.5 days. How many hours a day would have to work to finish the job 1.5 days earlier?
• Composite ratio
  Jakub, Aneta, and Lenka divided 1342 USD in the ratio 5/2: 3/10: 1/4. How much did Lenka take?
• Road repair
  Road repair took 10 days for 36 workers if they worked 9 hours a day. How many days take repair same road 37 workers if they work 8 per day?
• Trees avg
  The worker planted 96 trees on Monday, 120 on Tuesday, and 61 trees on Wednesday. How many trees did he plant on Thursday if he averaged 105 trees per day?
• Proportion 3
  For every 8 mango trees in the orchard, there are 4-star apple trees. If there are 1320 trees, how many trees of each kind are there?
• Christmas trees
  Salesman sold Christmas trees: spruce for € 22, pine for € 25 and fir for € 33. At the morning he had the same number of spruce, fir and pine. At the evening he had all the trees entirely sold for € 3,600. How many trees that day salesman sold?
• The gardener
  The gardener bought trees for 960 CZK. If every tree were cheaper by 12 CZK, he would have gotten four more trees for the same money. How many trees did he buy?
• ŽSR
  Calculate fixed annual personnel costs of operating monorail line 118 km long if every 5 km is a station, which serves three people - one dispatcher and two switchmen in 4-shift operation. Consider the average salary of the employee 885 €.
• Troops - soldiers
  Food stocks will last 20 soldiers of the 4-day training. How many days they could extend training if four soldiers become sick?