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The sum of consecutive even numbers is 200, what is the largest even number?
Let the maximum even number be x
8x-(2+4+6+8+10+12+14)=2008x-56=200
8x=144
x=182.The difference between the numbers A and B and the quotient are equal to 6, so what is the sum of A and B?
Let the number B be xx+6=6x
5x=6x=
Then the sum of A, B, is.
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1.Let the maximum even number be x
x-7=200/8
x-7=25
x=32 and the maximum even number is 32
2.Let A be x and B be 6+x
6x=6+x
6x=6+x
5x=6x=6/5
and = 6 5 + 6 5 6 = 42 5
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1. These 8 numbers are equal difference sequences with a tolerance of 2, let the first number a1=x, then a8=x+(8-1)·2=x+14
sn=n(a1+an) 2=8(x+x+14) 2=200 i.e. 8x+56=200 x=18
So a8 = x + 14 = 32
2. Let these two numbers be x and y respectively, then x-y=6 and x y=6 according to the second equation x=6y
Then substituting x=6y into the first equation gives 5y=6, so y=6 5 x=6y=36 5
x+y=42/5
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Solution: Let the minimum even number be x
x+x+2+x+4+x+6+x+8+x+10+x+12+x+14=200
Simplification: 8x 56 200
8x=144
x 18 max even x 14 32
Let A be x and B be y. (x>y﹚
x-y=6 ①
x÷y=6 ②
by , x y 6 by , x 6y
Hence y 6 6y
5y=6y=5/6 x=6/41
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1.The maximum even number is 32. 2.The sum of A, B.
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Set naughty with x stamps, according to the title:
x-2=15 3, x-2=45, x=45+2, x=47, so Naughty has 47 stamps.
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Let us, naughty has x sheets, and the column equation x-2=15*3
x = 47 answers, naughty has 47 cards.
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There are several balls in the pocket, of which the red ball accounts for 5 12 of the total balls, and later 8 red balls are placed, at this time the red ball accounts for 1 2 of the total ball, how many balls are in the pocket now?
You can refer to this question.
That's not the question to ask.
There are several balls in the pocket, of which the red ball accounts for 5 12 of the total balls, and later 8 red balls are placed, at this time the red ball accounts for 1 2 of the total ball, how many balls are in the pocket now?
Not this problem.
The amount of information is wrong.
5 12 change to 1 5 on your side
1 2 to 1 3 will do.
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Break down the second equation into two: 10x:15y=2:
1, 15y:12z=1:1, and then converted to:
x-3x=0,5y-4z=0, which is coupled with the first equation, and the solution is rudely regretful: Yan Chong correctly judges this x=120, y=40, z=50
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<> check the pure key guess to do the type bright grandson.
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Such a simple equation will not work!
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<> don't tremble, the sedan kettle is slow.
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