2 6th grade math problems, math masters come in!

1. Solution: If the apple is an x basket, the pear is a 40-x basket.

1-1 3)x=(1-3 5)(40-x)Solve the equation to get x=15;

then 40-x=40-15=25

So the apples are 15 baskets;Pears are 25 baskets.

2.The side length of the small square is.

68 (7+7+2)=Centimeters.

The area of the large rectangle in the figure.

Cm.

1. Solution: If the apple is an x basket, the pear is a 40-x basket.

1-1/3)x=(1-3/5)(40-x)x=15 ；then 40-x=40-15=25

So the apples are 15 baskets;Pears are 25 baskets.

2. Solution: If the width is x cm, the length is 5x cm.

68 2=34 cm 5 2=

5x+x=4 5-4=20 cm.

4 cm 20 14 = 280 square centimeters.

1.Solution: If apples originally had x baskets, then pears would have (40x) baskets.

Yes: (1 1 3) x (1 3 5) (40 x) can be solved: x=15 then 40 x=25

There were 15 baskets of apples and 25 baskets of pears.

2.Solution: Let the length of the small rectangle be x and the width be y

Then there is: 2x=5y

2(x+y)+2x+5y=68 ～～

Area s=2x(x+y).

From x=10 y=4 s=280, the area of the large rectangle is 280cm

1. Because the 2 3 of the apple = the 2 5 of the pear

So apples:pears = 2 5:2 3 = 3:5

Apple: 40 3 8 = 15 (basket).

Pears: 40 5 8 = 25 (basket).

2. Set the width of the small rectangle to be x cm.

then 7x+5x=34

1.Set apple x, pear y

x+y=40

x-1/3x=y-3/5y

2.Let the width of the small rectangle be x and the length be y

2y=5x2(x+y)+4y=68 x=4y=10Area: 2y(x+y)

1. Solve the apple as x basket and the pear as 40-x basket (1-1 3)x=(1-3 5)(40-x) x=15 40-15=25 basket.

2. The width of the solution is x cm, and the length is 5x cm 68 2 = 34 cm 5 2 = 5x + x = 4 5 4 = 20 cm.

4 cm 20 14 = 280 square centimeters.

(720 720 115% 720 25%) Yuan Answer: Dad brought 1440 yuan.

Income on three-year deposits: $25,000.

Income on three-year treasury bonds: $25,000.

Answer: The yield of the three-year treasury bond is large, 100 yuan larger.

It's very simple, children, it is recommended to think about it more, practice more after class, and don't be lazy!

Percentage questions. We haven't learned that yet. sorry

The money used by three people = (720*80%) + 720*80%*15%+720*80%) + 720*80%*25%)

Your dad's money = (720*80%)+720*80%*15%+720*80%)+720*80%*25%) divided by.

Dividing by 3 equals 6, indicating that 6t is used for yellow sand at a time, and it also shows that 6t is left with 6t18-2*6=6t cement each time

5*6-18=12t stone increased by 12t

The mass ratio is 3:2, and two baskets of apples are mixed together to form a 100 kg mixture. 60 kg of large apples and 40 kg of small apples.

If the unit price of a big apple is x yuan, then the unit price of a small apple is yuan.

60x+40 multiplied by the total price).

Get x = 110 23

That is, the Big Apple** is 110 23 and the Small Apple** is 88 23

100 divided by (3+2) = 20 Large: 20 times 3 = 60 kg Small: 20 times 2 = 40 kg What does "unit" mean?

If the unit price of a big apple is x yuan, then the unit price of a small apple is yuan.

Title suggests: 3x+2*

Solution: x=110 23

Let the denominator be x, then the numerator is x-4

x-4+9）/（x+9）=7/9.

Solution: x=9, then this score is 5 9

(x+9) (x+4+9)=7 9 gets x=5, this score is 5 9, I hope it can help you

It is found that the denominator of 7 9 is larger than the numerator 9-7=2, according to the subject numerator, after the denominator is added to 9, the denominator is still larger than the numerator by 4, and because 7 9 = 14 18, the denominator is larger than the numerator by 4, so the original fraction is (14-9) (18-9) = 5 9

Isn't it 5 out of 9? A simple equation is all it takes.

There is a fraction, its denominator is 4 more than the numerator, if the numerator and the denominator are added to the nine, the fraction is 7/9 after the fraction is about the minute, what is this fraction???

What about the question? Even the questions are not high, and the master can't answer them.

Sure enough, you need a master - you have to guess what you have to ask first!!

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