At present the sum of monica's age and daughter's age is 44 years. after 2 years monica's age will be three times that if her daughter's age. find their present ages.

Monica's age = 34 years

Her daughter's age = 10 years

Step-by-step explanation:

Let Monica's age = x

Let her daughter'sage = y

x + y = 44   > equ 1

After 2 years:

Monica's age = x + 2

Her daughter's age = y + 2

x + 2 = 3 * (y+2)

x + 2 = 3y + 6

      x = 3y + 6 -2

      x = 3y + 4

Put x value in equ 1:

    3y + 4 + y = 44

            4y = 44 - 4

             4y = 40

               y = 40/4

               y = 10

x = 44 -10

x = 34

Monica' present age =34 years

Daughter's present age = 10 years

Step-by-step explanation:

Let x =  Monica's present age.

y= Her daughter's present age .

As per given , we have

After two years,

Monica's age = x+2

Daughter's age = y+2

According to the question,

Use (i) in (ii), we get

Put value of x in (i) , we get

Hence, Monica' present age =34 years

Daughter's present age = 10 years

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40