1, the quotient of dividing two numbers is 9. If you add the dividend, divisor and quotient to 279, find the dividend and dividend.

Solution: Let the divisor be x, then the dividend is 9x and the equation is

9x+x+9=279

X = 27 and 9x = 243 to solve the equation.

The answer divisor is 27, and the dividend is 243.

2. Make a rectangle with a line that sings 3.6 decimeters. Double the length. What is the length and width of this rectangle?

Solution: If the width is x decimeter and the length is 2x decimeter, the equation is obtained.

2(x+2x)=3.6

6x=3.6

x=0.6

It should be 0.6 decimeter wide and 1.2 decimeter long.

3. There are RMB 65,438+0 yuan, 2 yuan, 5 yuan and RMB 65,438+00, RMB1* * 65,438+0080, and the number of each kind of paper money is equal and less.

Solution: suppose there are x sheets of paper, then

x+2x+5x+ 10x= 1080

18x= 1080

The solution is x=60.

A: There are 60 notes of each kind.