hi friends solve it plz
Answers
Answer:Student8116
Step-by-step explanation:
Answer:
x = 80 and y = 60
Step-by-step explanation:
60/x + 240/y =4
100/x + 200/y = 25/6
let 1/x = a and 1/y = b
60a + 240b = 4 --------(1)
100a + 200b = 25/6 -------(2)
on multiply by 100 in eq 1 and 60 in eq 2
100(60a + 240b = 4)
60(100a + 200b = 25/6
6000a + 24000b = 400 ------(3)
6000a + 12000b = 250 ------(4)
subtract eq 3 and 4
6000a + 24000b = 400
6000a + 12000b = 250
- - -
12000b = 150
b = 150/12000
b = 1/80
put b in eq 1
60a + 240b = 4
60a + 240(1/80) = 4
60a + 3 = 4
60a = 4 -3
a = 1/60
1/x = a. and 1/y = b
1/x = 1/80 and 1/y = 1/60
x = 80 and y = 60