# Metal rails

Dad needs to improve the edges of the wooden boxes - to be reinforced with metal rails. How many cms of rails will he need if the box has the shape of a prism with the length of the edges 70cm 70cm and 120cm?

**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:

- Flowerbed

In the park there is a large circular flowerbed with a diameter of 12 m. Jakub circulated him ten times and the smaller Vojtoseven times. How many meters each went by and how many meters did Jakub run more than Vojta? - Gloves

I have a box with two hundred pieces of gloves in total, split into ten parcels of twenty pieces, and I sell three parcels. What percent of the total amount I sold? - Mine

Wheel in traction tower has a diameter 5 m. How many meters will perform an elevator cabin if wheel rotates in the same direction 49 times? - Circle r,D

Calculate the diameter and radius of the circle if it has length 52.45 cm. - Drawer

The rectangular face of a drawer has a perimeter of 108 cm and a width of 18cm. Find the length and the area of the rectangular face of the drawer. - New refrigerator

New refrigerator sells for 1024 USD, Monday will be 25% discount. How much USD will save, and what will be the price? - Sales off

Goods is worth € 70 and the price of goods fell two weeks in a row by 10%. How many % decreased overall? - Inequation

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

In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class? - Conference

148 is the total number of employees. The conference was attended by 22 employees. How much is it in percent? - Apples 2

James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam? - Playground

Fencing square playground cost € 464; 1 meter cost € 19. What is the area of the playground? - TVs

Production of television sets increased from 3,500 units to 4,200 units. Calculate the percentage of production increase. - MO 2016 Numerical axis

Cat's school use a special numerical axis. The distance between the numbers 1 and 2 is 1 cm, the distance between the numbers 2 and 3 is 3 cm, between the numbers 3 and 4 is 5 cm and so on, the distance between the next pair of natural numbers is always in - Unknown number

Identify unknown number which 1/5 is 40 greater than one tenth of that number. - The percentages in practice

If every tenth apple on the tree is rotten it can be expressed by percentages: 10% of the apples on the tree is rotten. Tell percent using the following information: a. in June rained 6 days b, increase worker pay 500 euros to 50 euros c, grabbed 21 fro - Simplify 2

Simplify expression: 5ab-7+3ba-9