lakyarivers11 lakyarivers11
  • 18-12-2019
  • Mathematics
contestada

giselle is 4 years older than her brother marco. the sum of their ages is 30. Write and solve a system of equations to find their ages

Respuesta :

kendal55
kendal55 kendal55
  • 18-12-2019
Because we don’t know Marco’s age just put x in instead

4+x=30

To find x in this equation you have to isolate it. You do that by subtracting 4

30-4=x

That means that x=26
Answer Link

Otras preguntas

Winona is a 22-year-old new mother, and anna is a 38-year-old new mother. according to ravenna helson’s theory, the ____________, both of these women may experi
Find n. Perimeter = 86 in.
How does the story life of pi relate to the theme of cultural traditions?
What is the main purpose of life?
Which of the three variables that apply to the equal amounts of gases are directly proportional? Which are inversely proportional?
evaluate the following expression. round your answer to decimal places. log7 9
Question 1, please help !!!!
Applies for a health insurance policy on herself and submits the initial premium with the application. she is given a receipt by the producer stating that cover
What is the value of x?
A word with nearly the same meaning as another word is called a(n)