# Mr. John

Mr. John wants to buy winter apples Spartan. There are two ways to buy:

1) buy apples at the marketplace, where 1 kg costs 15 CZK.

2) Bring the car to the agricultural farm, where the apples are sold after 9 CZK per kilogram. However, he must pay CZK 150 for car gasoline.

How many kilograms of apples would have Mr. John buy that for him to be more cost-effective to drive to the agricultural farm?

1) buy apples at the marketplace, where 1 kg costs 15 CZK.

2) Bring the car to the agricultural farm, where the apples are sold after 9 CZK per kilogram. However, he must pay CZK 150 for car gasoline.

How many kilograms of apples would have Mr. John buy that for him to be more cost-effective to drive to the agricultural farm?

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

**Showing 0 comments:**

**Be the first to comment!**

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

## Next similar examples:

- Forest nursery

In the forest nursery after winter, they found that 1/10 stems died out of them. For them, they land 193 new spruces. How many spruces are in the forest nursery? - 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. - Equation

Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number. - Bread

5 of the same bread has the same weight as three bread and 4 kg of fruit. What weight has one bread? - Simple equation

Solve for x: 3(x + 2) = x - 18 - Inequation

Solve the inequation: 5k - (7k - 1)≤ 2/5 . (5-k)-2 - Equation 29

Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 ) - Norm

Three workers planted 3555 seedlings of tomatoes in one dey. First worked at the standard norm, the second planted 120 seedlings more and the third 135 seedlings more than the first worker. How many seedlings were standard norm? - Cakes

Grandmother baked cakes. Half of its was poppy, quarter with plum jam and 16 cheesecakes. How many cakes she baked in total? - Unknown number 11

That number increased by three equals three times itself? - Dropped sheets

Three consecutive sheets dropped from the book. The sum of the numbers on the pages of the dropped sheets is 273. What number has the last page of the dropped sheets? - Negative in equation

2x + 3 + 7x = – 24, what is the value of x? - Equation

? - Unknown number

Identify unknown number which 1/5 is 40 greater than one tenth of that number. - Arithmetic average

The arithmetic mean of the five numbers is exactly 8. The sum of these four numbers is 30. What is the fifth number? - Coal storage

The coal storage distribute received coal shipment within three days. The first day distribute third of the shipments, the second day of two-fifths of the rest and the third day 300 tons of coal. How many tons of coal distributed first and second day? - Shop stores

Workers untied fruit to stores. In the first quarter shipments, in the second fifth shipment, in the third two-fifths of the rest and in the fourth 231 kilograms. How many fruits were together?