Question

read the instructions first
Polya created his famous four-step process for problem solving, which is used all over to aid people in problem solving:
Step 1: Understand the problem.
Step 2: Devise a plan (translate).
Step 3: Carry out the plan (solve).
Step 4: Look back (check and interpret​

Answer 1

Step-by-step explanation:

Polya's method:-

Step-1:-

A) Understanding the problem:-

Let the age of Angie be X years and

The age of Rose be Y years

Step -2:-

B)Devise a plan:-

Angie's age is no less than 6 more than Rose's age.

X≥Y+6 -------(1)

The sum of their ages is greater than 18

X+Y>18-------(2)

Step -3:-

C) Carry out the plan:-

Equation (1) can be written as

X≥Y+6

=>X-6≥Y+6-6

=>X-6≥Y

=>Y≤X-6

and Equation (2) becomes

X+Y>18

=>Y> -X+18

Step-4:-

D) Look back:-

(30,20)

20≤30-6

20≤24

and

30+20>18

50>18

Things to remember:-

There are 4 steps in the Polya's method.They are

Step 1: Understand the problem.

Step 2: Devise a plan (translate).

Step 3: Carry out the plan (solve).

Step 4: Look back (check and interpret)