A square table is composed of one table top and four legs. 50 or 300 legs can be made from 1 cubic meter of wood. There are 5 cubic meters of wood Solving the first order equation with two variables
The table top is made of X cubic meters of wood, and the table legs are made of Y cubic meters of wood
x+y=5
300y=50x×4
The solution is as follows
x=3,
y=2
Answer: with 3 cubic meters of wood do desktop, with 2 cubic meters of wood do legs
RELATED INFORMATIONS
- 1. A square table consists of one table top and four legs. If one cubic meter of wood can be used to make 50 tables or 300 legs of a square table, and there are 5 cubic meters of wood, how many cubic meters of wood can be used to make the table top and how many cubic meters of wood can be used to make the table legs?
- 2. How to calculate the wood diameter of 0.70% in 4 meter cubic meter
- 3. The bottom radius of a section of cylindrical wood is 20 cm and the height is 2 M. how much has the surface area increased by sawing this section of wood from the middle into two sample size columns?
- 4. The ground radius of a section of cylindrical wood is 20cm and the height is 2cm. How much is the surface area increased by sawing this section of wood into two columns of the same size from the middle?
- 5. A cylindrical timber with a radius of 20cm. How many square centimeters has the surface area increased after sawing it into three equal small columns?
- 6. A section of cuboid wood is 1.2 meters long. If you want to cut it short by 2 cm, its volume will be reduced by 40 cubic cm
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- 8. A section of cuboid wood is 1 meter long. If it is sawed off for 2 cm, its volume will be reduced by 20 cubic cm. What is the original volume of this section of wood? (detailed thinking)
- 9. A cuboid wood is 1.2m long. If it is sawed off 2cm, its volume will be reduced by 40 cubic centimeters. How much cubic centimeters is that of the original wood? My mother bought a turtle and put it in a rectangular glass fish tank of 5DM in length and 4dm in width. After the turtle sank into the water, it was observed that the water surface rose by 1dm. Do you know the volume of the turtle?
- 10. A section of cuboid wood is 1.2 meters long. If you want to cut it short by 2 cm, its volume will be reduced by 40 cubic cm
- 11. A furniture factory produces a kind of square table. In the design, one cubic meter of wood can be used as 50 tabletops or 300 table legs. There are 20 cubic meters of wood. How to distribute the wood used in the production of tabletops and table legs so that the tabletops and table legs can match each other? How many square tables can be produced? (one square table has one tabletop and four table legs) Let's use x cubic meters of wood as the table top and Y cubic meters of wood as the table legs, X+Y=20 50X*4=300Y X=12, Y=8 According to the test, it conforms to the meaning of the question, At this time, it can be used as 50 × 12 = 600 square tables I don't understand why 50x * 4? The topic doesn't say that a cubic meter of wood can only make 50 facets, or only 300 legs. That is to say, the amount of 50 facets is equal to that of 300 legs
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