6th Grade Math Problems! Ask for help! Hurry, hurry!

Let's assume the number of seats is x

At the beginning, the number of people was 2x 3, and later 6 people came up, and the number of people was 4x 5, so:

4x/5-2x/3=6

x=45 with a total of 45 seats.

The car has 45 seats. The number of seats is x. (2/3)*x+6)):x-(2/3)x+6))]=4:1

Solution: There are a total of x seats.

Then there is 2 3x + 6 = 4 5x

Solution: x=45

A: This car has 45 seats.

45 seats.

At first, there are 2 3 seats, and after 6 people come up, the number of people with seats occupies 4 (4+1)=4 5

The ratio of seats occupied by those 6 people is 4 5-2 3 = 2 15, so the number of seats is 6 divided by 2 15 = 45

There are x seats, and the column equation is solved x=45 (sorry, the equation can't be typed).

6 The difference between two-thirds and four-fifths equals 45

Six divided by 4/5 minus 2/5 of the difference.

The ratio of seats to empty seats.

(1) Watching less TV will create garbage, and the amount of carbon emitted by throwing away garbage is greater than the amount of carbon emitted by watching TV.

2) 1 500 12 The same goes for it.

If there is any novel answer, send it to me, thank you

1. 287*(1+1/7)-287

41 tons. tons of 3 3200*(1+1/4)

4000 pcs.

4.Pour out the weight of water = 15-6 = 9 kg.

2 3 of the total water weight

So the total water weight = 9 (2 3) = kg.

5 The area of the sector = 1 4 * square centimeters.

Triangle area = 20 * 20 2 = 200 square centimeters so shaded part = 314-200 = 114 square centimeters hope it can help you, thank you.

*1 7 = 41 (tons), analysis: "increase over May" is (June production, May production-1).

(1 + 3 20) = 10,000 tons), analysis: "overproduction than planned" is (actual plan - 1) = 3 20.

(1+1 4)=4000, analysis: "1 4 more than the original plan" is (actual plan-1)=1 4.

4. (15-6) (2 3) =, Analysis: 2 3 water poured out weighs (15-6) kg.

5. Analysis: Sector Area - Triangular Area.

ps: Kid, I helped you do your homework, I hope you understand my analysis well

1.The output of a pesticide factory in June increased by one-seventh compared with the output in May, and it is known that 287 tons of pesticides were produced in May, and how many tons of pesticides were produced in May compared with June?

287 (1 1 7) 278 41 tons.

2.Nanyang Village plans to produce 300,000 tons of grain this year, but the actual output is three-twenties more than planned.

30 (1 3 200) tons [this year's production].

3.A workshop plans to process 3,200 parts, due to the improvement of work efficiency, the result is a quarter more than the original plan, how many parts are actually produced in this workshop?

3200 (1 1 4) 4000pcs.

4.A bucket full of water weighs 15 kilograms, and after pouring out two-thirds of the water, it weighs 6 kilograms, how many kilograms of water can this bucket hold?

15 6 9 kg [poured out water] is 2 3 of all water

9 2 kg [1 3 of all water] all water

5.Find the area of the shaded part in Figure 1.

1／4 －20×20÷2＝114m2

Question 1 287 7 = 41 tons.

Question 2: 30 * (1 + 3 20) = 10,000 tons.

Question 3 3200 * (1 + 1 4) = 4000 Question 4 (15-6) (2 3) = kg.

Question 5 *20 squared 4-20*20 2=

Draw an auxiliary line, and it is known from the theorem that the triangles x, y, and z are right-angled triangles.

sin 30 degrees xy xz

xy=9;White part area:

s white r *1 6

The gray area is equal to the area of the semicircle minus the area of the fan.

S gray = 81 2 -81 6

S gray 27 (we didn't learn trigonometry in sixth grade, I don't know if you did) can't illustrate the diagram

The radius of the semicircle is 9 cm, and the radius of the fan is also 9 cm, so the area of the shaded part is found = the area of the semicircle - the area of the fan = ( 9 2) 2 - 60 9 2) 360 = 27 (square centimeters).

Shaded area = semicircular area - sector area = 81 -60 ° 81 360 = 135 2

.What's the problem?,Is there a picture?

Solution: If the diameter of the ancient tree is a meter, then the following equation holds.

a = solution to a = diameter of meters.

Solution: If the diameter of the ancient tree is a meter, then there is the following equation.

into *a =

The solution is a = diameter is m diameter = m lit.

Ancient trees are circular in shape: the circumference of the circle is formulated by the formula: diameter = meters.

1.In the answer to the first question above (other people's answers) 13 and 130 2 and 71 11 and 132 are not correct, because 13 2 71 11 are all prime numbers, not composite numbers, so the answers are only 26 and 65, 33 and 44

Let ac be x according to the sum of the two sides is greater than the third side, and the difference between the two sides is less than the third side, so 19>x>11 ; 13>x>1d gives 13>x>11 so AC is 12

Others are annoying ......

1.for 26 and and 130; or 33 and 132; Or 2 and 71. If the solution 143 is decomposed into 11x13, then the greatest common factor is taken as 11 or 13, and the minimum multiple is 143-11=132=11x12=11x(3x4) or =11x(1x12), where () is the factor of two interprime elements of 12.

The same goes for others.