SOLUTION: If Peter's age plus Paul's age = 34
and Peter's age plus Mary's age =42
and Paul's age plus Mary's age =24
How old are Peter, Paul and Mary
Algebra.Com
Question 941633: If Peter's age plus Paul's age = 34
and Peter's age plus Mary's age =42
and Paul's age plus Mary's age =24
How old are Peter, Paul and Mary
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
x = age of Peter
y = age of Paul
z = age of Mary
---
x + y = 34
x + z = 42
y + z = 24
---
put the system of linear equations into standard form
---
2x + 2y = 70
x - 2y = 8
---
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 = 26
y = 8
z = 16
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with 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
If Peter’s age + Paul’s age = 39
and Peter’s age + Mary’s age = 44
and Paul’s age +... (answered by ewatrrr,ikleyn)
If two times Sam’s age plus three times Sarah’s age equals 34 and Sarah’s age is also... (answered by josgarithmetic,greenestamps)
Wark’s (W) age equals Peter’s (P) age plus the cube root of Ian’s (I) age. P’s age equals (answered by ankor@dixie-net.com)
Peter is 12 years older than his brother David. If
four times Peter’s age plus two times (answered by fafa)
Michael's age plus Phil's age is 44. Twice Phil's age is 4 more than Michael's age. How... (answered by josgarithmetic)
Five times Jeff's age plus three times Karen's are equals 92. Karen's age is 4 more than... (answered by VFBundy)
Shelia's age plus Kerry's age is 27
Shelia's age plus jack age is 38
Kerry's age plus... (answered by ikleyn,josgarithmetic)
If twice Betty s age in years plus Joe s age in years equals seven, how old are Betty and (answered by ikleyn)
One-half of Peter’s age two years from now plus one-third of his age three years ago is (answered by ikleyn)