ijustwannaknow11 ijustwannaknow11

13-06-2020
Mathematics

contestada

A woman is now 30 years older than her son. 15 years ago, she was twice as old. What are the present ages of the woman and her son?

Respuesta :

mhanifa mhanifa

13-06-2020

Answer:

75 and 45

Step-by-step explanation:

woman's age= w

son's age= s

--------------

w=s+30
w-15=(s-15)*2 ⇒ w-15=2s-30 ⇒ w=2s- 15

comparing the two above:

s+30=2s-15 ⇒ s= 45 ⇒ w= 75

Answer Link

Otras preguntas

Liam has 9/10 gallon of paint for painting the bird houses he sells at the craft fair. Each bird house requires 1/20 gallon of paint. How many birdhouse a can L

Which of the following is not a form of forced migration? a. fear of imprisonment and death. b. home destroyed by floods or hurricanes c. food shortage d. c

If your doctor told you that you have strep throat, you could conclude that you are infected with which type of pathogen? A. bacteria B. fungi C. protozoa D. vi

Ivan III began the tradition of _____________in Russia.

Does anyone know the answer to this joke?: Did you hear the one about the acupuncture?

The Indian leader who advocated a nonviolent approach to independence was _____. Bose Gandhi Nehru Akbar

In a recent year One United States dollar was equal to 82 Japanese yen How many Japanese yen are equal to $100 $1,000 $10,000

Simplify, 5(2x + 3y) - 4(3x - 5y)

3 less than the quotient of 20 and x

Organisms need _____ to conduct essential life activities. offspring energy other organisms light