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45,8 is 2.65 less than 5.1 times of a certain number
Let this number be X
5.1x-2.65=45.8
5.1x=45.8+2.65
5.1x=48.45
x=9.5
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The equation 1.45.8 is less than 5.1 times of a certain number by 2.65. Find the number 2. Two times of a certain number is less than 4 times by 28. Find the number 3. Tomato x kg Chinese cabbage
There are five of them (six of them are cabbage and tomato) with a total weight of 27 kg
Ask for several thousand grams of tomato
1. Let this number be X
5.1x-2.65=45.8
The solution is x = 9.5
2. Let this number be X
4x-2x=28
x=14
3.6x=27
x=4.5
5.2 times of a number plus 4.8 times of it, and the equation is 120
Let this number be X
5.2x+4.8x=120
10x=120
x=12
A: the number is 12
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