SOLUTION: The Day garden has 24 students in its 3-and 4-year old program. There are twice as many 4-yr olds as there are 3-year olds. How many of each age are there?

Algebra.Com
Question 928582: The Day garden has 24 students in its 3-and 4-year old program. There are twice as many 4-yr olds as there are 3-year olds. How many of each age are there?
Answer by TimothyLamb(4379)   (Show Source): You can put this solution on YOUR website!
x = number of 3 year olds
y = number of 4 year olds
---
x + y = 24
y = 2x
---
put the system of linear equations into standard form
---
x + y = 24
2x - y = 0
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = number of 3 year olds = 8
y = number of 4 year olds = 16
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php

RELATED QUESTIONS

The head start program provides a wide range of services to low-income children up to the (answered by ikleyn)
The head start program provides a wide range of services to low-income children up to the (answered by CPhill)
The head start program provides a wide range of services to low-income children up to the (answered by CPhill)
If the daycare you are working in has 4 one year olds, 7 two year olds, 12 three year... (answered by Alan3354,ikleyn)
In a year 10 maths class, there are 30 students. Each student is either 15 or 16 years... (answered by Boreal)
In a classroom which has 20 students,16 of the students are boys,24 are ten year old and... (answered by JBarnum)
A tee ball team for 5 year olds has half as many girls as boys. If there are 15 children... (answered by oscargut)
Mr. Granger is 10 years more than twice as old as his son. However, last year he was 4... (answered by fractalier)
Rodney is 3 times as old as his sister. A year ago he was 4 times as old. How old are... (answered by nyc_function)