if 4x+3y=120, find how many positive integer solutions are possible?
Answers
Answered by
0
Answer:
Enfinite no of positive integers solution are posskble
Answered by
2
Answer:
Type your question...
9th
Maths
Linear Equations in Two Variable
Solution of Linear Equations in Two Variables
If 4x + 3y = 120 , find how...
MATHS
If 4x+3y=120, find how many positive integer solutions are possible?
December 27, 2019
avatar
Najiya Sapra
Share
Save
ANSWER
3y+4x=120
y=
3
120−4x
y=4(
3
30−x
)
=40−
3
4x
For y to be positive integer, (40−
3
4x
)>0
And x should be multiple of 3
3
4x
<40 ⇒x<30
x is also positive integer
∴x>0
For y to be positive integer, x=3k and 0<x<3k
∴ Solution set =(3k,40,4k),k=1,2....9
9 solution are possible
i hope it help u
Similar questions