I can t do a math problem, so ask a prawn to help !! 5

Question 1: I won't.

I'll ask the second question.

Draw first** (Draw it yourself in the notebook.,It's already a mess to write on the computer.,It should be no problem to do it step by step).

Calendar in English.

A 1 B 1 3 3

C 3 1 2

Ding E 2 1

1) According to the question, everyone won a first place, so Ding English first.

Calendar in English.

A 1 B 1 3 3

C 3 1 2

Ding 1 E 2 1

2) 14 points according to B B's calendar + number = 7 2 + 5 = 7 or 4 + 3 = 7 C "B C's language + English" 7 4 + 5>7 or 5 + 4>7 (because A = 12, if C = 4, then A = 5, A's language + land + number cannot be equal to 6).

Cause + place + number = 7 2 + 2 + 3 = 7

Calendar in English.

A 1 2 2 4 3

B 2 1 3 3 5

C 3 4 1 5 2

Ding 1 E 2 1

You can push it yourself.

And finally. Calendar in English.

A 1 2 2 4 3

B 2 1 3 3 5

C 3 4 1 5 2

D 4 3 4 1 4

E 5 5 5 2 1

Ding = 16

Solution: It takes X hours to arrive.

20:24=x:12

x=12*20/24=10

It takes 10 hours to arrive.

Hello!Solution: It takes X hours to arrive.

24x=20×12

24x=240

x=240÷24

x=10 A: It takes 10 hours to arrive.

The third question is to eat for another 9 days, counting the 18 days of the previous 1 3 food, a total of 27 days.

You have so much content.,To the process is estimated to be incomplete here.,Only provide the answer but can write it.,I've calculated the results of the five questions.,The process can't be written here.。。。

Solve the equation for last year's male employees x and female employees (300-x): 1 6x + 1 5 (300-x) = 354-300 to get x = 180

Last year, there were 180 male employees and 120 female employees.

This year, there are 210 men and 144 women.

Solution: If there are x male workers, then there are (300-x) female workers.

x(1 + 1/6) + (300-x)(1 + 1/5) = 354x = 180

300-180 = 120 (people).

A: There are 180 male workers and 120 female workers.

Suppose the number of male employees last year was x

then the number of female employees is 300-x people.

1+ 1/6）x+（1+

x=180 so this year's male employees: 180*(1 + 1 6)=210 so this year's female employees: (300-180)*

Column binary linear equations.

Solution: There are x male employees and y female employees.

x+y=300

x+1 6x)+(y+1 5y)=354 is solved as: x=180

y=120 bring x, y in: last year: (male) 180 + (female) 120 = 300 this year:

Male) (x+1 6x) = 180 + 180 * 1 6 = 210 (female) (y + 1 5y) = 120 + 120 * 1 5 = 144 Answer: Last year there were 180 male employees, and this year there are 210 people. Last year there were 120 female employees, and this year there are 144 women.

Solution: There are x number of male employees.

7÷6x+6÷5×（300-x）＝354

x＝180…Man.

300-180＝120…Woman.

There are male employees x and female employees y

x+y=354;x=354-y(1)

x÷(1+1/6)+y÷(1+1/5)=3006x/7+5y/6=300

36x+35y=12600(2)

1) Substitution (2).

12744-36y+35y=12600

y=144x=354-y

x=354-144

x=210