How do I do this? Solution, how to do this problem? Solve

Let the total weight of this basket of apples be x:

The apple sold is 1 5x+8

The remaining apples are x - 1 5x+8).

The equation 1 5x+8=1 2 is 1 5x+8=1 2x - 1 10x-4

Solution x=60

A: This basket of apples turned out to be 60kg

Selling one-fifth means that there are four fifths left, and selling another 8 kg is four-fifths of the original mass minus 8, and if the original mass is x, then there is 1 5x+8=(1 2) x( ( (4 5)x - 8 )).

Solution x=60

Solution: Let the total weight of this basket of apples be x:

Columnable equation 1 5x+8=1 2

That is, 1 5x+8=1 2x - 1 10x-4 solution x=60kg

A: This basket of apples turned out to be 60kg

The difference between one-half and one-fifth is 8 kilograms, and the difference between one-half and one-fifth is four-fifths, i.e., four-fifths is 8 kilograms, and 8 divided by four-fifths equals 10, resulting in a whole basket of apples weighing 10 kilograms.

Let the original mass be x, then there is 1 5x+8=(1 2) x( (4 5)x - 8 )).

Solution x=60

60 kg. Solution: Let the original apple be x, and sell the apple as.

If you sell the apples for half of the remaining apples, you can get 1 5x+8=1 3x for the original apples

Solve x=60

Solution: Let this basket of apples originally have x kilograms, according to the known apples sold are 1 5x+8, and the remaining apples are x-(1 5x+8), then the equation [x-(1 5x+8)]*1 2=1 5x+8, and the solution of the equation is x 60, so this basket of apples originally had 60 kilograms. By the way, at what age is this math problem?

Set the original apples x kg.

1／5*x+8=1／2（x-1／5*x-8)

Solution x=72

If the original weight of the apple is x, the weight of the purchased apple is 1 5x+8; 1 2 of the remaining weight is (4 5x-8) *1 2So the equation is: 1 5x+8=(4 5x-8)*1 2, and the solution is x=60kg

Set this basket of apples x kilograms. x minus x 5 and then subtracting 8 equals 2 multiplied by (8+x 5) to get x=60

Suppose a total of a kilogram. The sold apples are 1 5a+8, and the remaining apples are a-1 5a-8.

1 5a+8=(a-1 5a-8) 2 can be calculated a=60kg. If you don't understand, you can continue to ask.

Solution: Let there be x grams, and the columnable equation 1 5*x+8= 2

The solution is x=60kg

To solve the unary equation, let the basket of apples be x kg, x 1 5x 8=1 2x, and the solution x is 80 3 approx.

Choose C. Mathematical thinking method: one-to-one combination of numbers and shapes.

It is known that the sum of the distances to (0,-1) and (0,1) is 2.

And the distance between (0,-1) and (0,1) is 2.

The result is that for this line segment x=0 (-1 y 1), select c111111111.

If you are satisfied, please adopt it in time. Thank you!

The first root sign indicates the distance from point p to (0,-1).

The second root number indicates the distance from point p to (0,1).

So the meaning of the equation is:

The sum of the distances from point p to (0,-1) and to (0,1) is a fixed value of 2, where it is found that the distances of (0,-1) and (0,1) are 2, so p is on the line segments connected by (0,-1) and (0,1), which is also option c.

1.Deng Jiaxian is known as the "Father of the Second Bomb".

2.The longest river in South America is the Amazon River.

On January 1, the world's first organization was founded, headquartered in Geneva, Switzerland.

4.The Three Gorges Water Conservancy Project is the largest water conservancy project in China.

5.World Environment Day is celebrated on June 5 every year"。

Hope, thank you.

1, Deng Jiaxian.

2. Amazon River.

3. Geneva, Switzerland.

4. Three Gorges of the Yangtze River.

5. The world environment.

The two curves y=2(x-1) and y=x+e x are truncated by the third straight line, and the shortest truncation distance occurs when the tangents at the intersection are parallel [in this case, the two tangents are parallel and the slopes are equal]—this is true.

Solution: y=2(x-1) gives y'=2,y=x+e x to get y'=1+e x The slope is equal i.e. 2=1+e x gives x=0

Because the slopes are equal everywhere for y=2(x-1), the minimum point depends on the slope of y=x+e x. Substituting the tangent abscissa x=0, when there is y=0+e 0 =1, i.e., y=a=1, the intersection point with y=x+e x is the tangent point b(0,1), and the intersection point with y=2(x-1) a(3 2,1) is obtained to obtain the minimum value |ab|min=|xb-xa|=|0-3/2|=3/2

Definition of application derivative, g'(0)=lim(x→0)[g(x)-g(0)]/(x-0)=lim(x→0)g(x)/x

lim(x→0)x·cos(1/x)

0 [bounded function infinitesimal = infinitesimal minimity].

Then according to the derivation of the composite function, the original formula = f'[g(0)]·g'(0)=0

If the number of surviving trees in the previous year is x, the number of trees planted last year is.

Not a specific number. If the length of the line segment is x (the length of the horizontal side in the figure), then the perimeter of the large figure is 20 4-6x = 80-6x.

Since there is no limit on the length of the edges, you can bring two different combinations to try with the fixed value. In the small quadrilateral, a long side and a short side are combined to combine the perimeter of the large image to be 26, and the circumference of the combined large image is 32.