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The area of the first experimental field is 100 square meters more than three times that of the second one. The two experimental fields have a total area of 2900 square meters. What are the area of the two experimental fields
Suppose the area of the second test field is x square meters, then the area of the first test field is 3x + 100 square meters. According to the meaning of the title, we can get the equation: x + 3x + 100 = 2900 & nbsp; 4x + 100 = 2900 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 4x = 2800 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 700700 × 3 + 100 = 2200 square meters a: the area of the first plot is 2200 square meters, and the area of the second plot is 700 square meters
There are two experimental fields in a farm. The area of the first fast experimental field is 100 square meters more than three times that of the second fast experimental field. The total area of these two experimental fields is 2900 square meters
Let the first field be y and the second field be x, then the equation is 3x + 100 = y, x + y = 2900
Substituting x into the equation is 3x + 100 + x = 2900
4x=2900-100
x=2800÷4
x=700,y=3×700+100=2200
The answer is, x = 700, y = 2200
The Institute of Agricultural Sciences recommended two new maize varieties A and B to farmers. Under the condition of the same field management and soil quality, the yield per unit area of maize B was lower than that of maize a
I don't understand
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