Math problems, I have to use a one dimensional equation to solve, and I ask my seniors to help me

1: Solution: Let the first number be x x+1+x=45 2x+1=45 2x=44 x=22 22+1=23 Answer: These two numbers are

2: Solution: Let the first number be x x+2+x=26 2x+2=26 2x=24 x=12 12+2=14 Answer: These two even numbers are

3: Solution: Set the number of female players as x x + 12 + x = 50 2x + 12 = 50 2x = 38 x = 19 (people).

A: There are 19 female players.

4: Solution: Let this number be x (x-8)9=108 x-8=12 x=20 Answer: This number is 20

5: Solution: Set ice cream per cup x yuan 5x+7(10-x)=46 5x+70-7x=46 5x+7x-70=46 12x-70=46 12x=116

x=) This problem cannot be solved!!

1.The sum of two consecutive numbers is 45, find these two numbers.

Let the small number be x, then 2x 1=45

2x=44x=22

x 1=23

2.The even sum of two consecutive numbers is 26, find these two numbers.

Let the minimum number be x, then.

2x 2=26

2x=24x=12

x 2=14

3.In one competition, the number of male players was 12 more than the number of female players, and a total of 50 players participated in the competition.

If there are x female players, then.

2x 12=50

2x=38x=19 people.

4.After subtracting 8 from a number, the product of the difference multiplied by 9 is 108, and the number is found.

Let this number be x, then.

x－8）×9＝108

x－8＝12

x＝205.Set ice cream for x yuan.

5x (10-x)7=4

1. Solution: Let the smaller number be x, and the larger number is x+1

From the meaning of the question, x+(x+1)=45 is solved x=22, then x+1=23Answer: These two numbers are ., respectively

2. Solution: Let the smaller number be x, and the larger number is x+2

From the meaning of the question, x+(x+2)=26 is solved x=12, then x+2=14Answer: These two numbers are ., respectively

3. Solution: Set: There are x female players and (x+12) male players.

x+(x+12)=50 x=19Answer: The number of female players is 19.

4. Solution: Let the number be x.

From the meaning of the question (x-8) 9=108 solution x=20Answer: The number is 20.

5. Solution: Set: The unit price of ice cream is X yuan, and the unit price of soda is (10-x) yuan.

If 5x+7(10-x)=46 is solved by the problem, x=12 and 10-x=-2 are negative numbers, then there is no solution to the problem.

22 Let one number be x and the other number be x+1, x+(x+1)=45.

2 .Let x and x+2, x x 2 46, and we get 22 243Set up female players x people, male players x 12 people x 12 50 solution x 19 Answer: The number of female players is 19

4.Let the number be x, and get x-8 9 108 from the question, and solve x 20 Answer: The number is 20

5.The price of each cup of ice-cream is x the price of each cup of soft drinks is 10 x 5x 7 10 x 46 solution x 12 A: The price of each cup of ice-cream is 12

x+(x+1)=45, x=22, answer

x+(x+2)=26 x=12 answers

Set female x then x+(x+12)=50 x=19x-8)*9=108 x-8=12 x=20 set each cup of ice cream x 5x+(10-x)*7=46 x=12 This question is wrong, you take a closer look at the number. Hope.

If this is elementary school math.

2=22 is more than 1, so these two numbers are 22,23,x+x+1=45 2=13,13 is an odd number, this question is two consecutive even numbers, so it is, x+x+2=263, male x, x+x-12=50, x=31, female 194, (x-8)*9=108, x=20

5. Ice cream x yuan, 5x+7*(10-x)=46, x=12, this question is estimated that you wrote it wrong.

According to the title, we know that 1 garment production line and 1 children's clothing production line produce a total of 73 tops per day, and set up 1 garment production line to produce x tops per day, and the following equation can be obtained:

x+(105-x)/2=73

x=41 1 garment production line and 1 children's burning production line each day so can not complete the task as scheduled, 10, [urgent] After solving this mathematical problem with a one-dimensional equation, the disaster area urgently needs a large number of tents. A garment factory originally had 4 ready-to-wear production lines and 5 children's clothing production lines, and the factory decided to switch production and planned to make 1,000 tents in three days to support the disaster area. If 1 garment production line and 2 children's clothing production lines are activated, 105 tents can be produced a day; If 2 ready-to-wear production lines and 3 children's clothing production lines are activated, 178 tents can be produced in one day.

Q1: How many tents are produced per day for each garment production line and children's clothing production line on average?

2. Can the factory complete the task as scheduled?

Note: Solve 1 with a one-dimensional equation

Let Zhang Tao invest x yuan in **, then Zhang Tao invests (100,000-x) yuan in ** and the equation is as follows

2250+ x =7185

x=7185

Note that 100,000 = 100,000

You just have to figure it out.

Let the investment be x, then it will be 10-x

The equation is as follows. x* or x*

If Zhang Tao invested x million yuan on **, he invested (10-x) million yuan on **.

If you set ** to x, then ** is 10-xx=

Solution: A and B are xm apart

x ( solution: x=20

The time it takes for A to drive to place B is: 20 (

The time for A to leave place B is: 4-2=2h

So, ship A leaves place b: 2*(

This question is not clear!

According to the title, the speed of drowning is 5km.

I understand the meaning of the topic to mean that two boats A and B arrive at place B at the same time, and then A goes down the river, and B goes upstream, and when B drives out for 4 hours, ask A about the distance between ship A and place B.

s=vt=10*4=40m

It may also be that the distance between ship A and place B when B arrives at place C, but there is no mention of any condition in the distance of place C in the question stem, so it cannot be calculated.

Set the armoured ship to leave place b x kmBecause it was a trip down the river, A sailed a total of x (hours) from place B.

In addition, because the speed of the downstream is twice that of the countercurrent (10 5), the time taken to travel from A to B is 1 2 of the time taken by the countercurrent to go from B to A. Assuming that ship B returns to point A, it takes a total of 6 hours (4+10 5). So it took 2 hours to get from A to B, and 2 hours to get from B to C.

i.e. x (. Get x=20