## TUTTI Jaime is 3 years older than Crystal. Marissa is twice as old Jaime. The sum of their ages is 45. How old is each

Question

TUTTI
Jaime is 3 years older than Crystal.
Marissa is twice as old Jaime. The sum
of their ages is 45. How old is each
person?
a) Define a variable:
b) Write an equation.
c) Solve the equation.
complete sentence.

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6 months 2021-08-10T20:19:19+00:00 1 Answers 4 views 0

See Explanation

Step-by-step explanation:

Solving (a): The Variables

The variables are the ages of Jaime, Crystal and Marissa;

Let

x represents Jaime’s age;

y represents Crystal’s age;

z represents Marissa’s age

Solving (b): Equation

Solving (c): Result of the equations

— (1)

— (2)

— (3)

Make y the subject in (1)

Substitute and in (3)

Collect Like Terms

Solve for x

Substitute in and

This implies that;

Jaime is 12; Crystal is 9 and Marissa is 24 years old

Solving (d): Essence of the question

The question asks that we solve for the ages of Jaime, Crystal and Marissa