Question

xxxx

Answer 1

Rita's age is r.
The problem told you to use the variable r as Rita's age. Ok?

Answer 2

r*5 =05

Answer 3

maybe 5r=95?

Answer 4

5r=95

Answer 5

solve for r?

Answer 6

Product means a multiplication.
The product of Rita's age and 5 is:
5 * r which we can write simply as 5r

Answer 7

We are told the product equals 95, so we write:
5r = 95

Answer 8

r=19

Answer 9

The equation
5r = 95
represents the word problem you were given.

If all you need to do is write an equation to represent the problem, you're done.

If you need to find Rita's age, then you need to solve the equation 5r = 95 for r.

Answer 10

5r = 95

We want r alone. r is being multiplied by 5.
To get r alone, we divide 5r by 5.
The rule of equations is that we must do the same operations to both sides of an equation.
We divide both sides by 5.

\(5r = 95\)

\(\dfrac{5r}{5} = \dfrac{95}{5} \)

\(r = 19\)

Answer: Rita's age is 19.