The cost of 2 kg of mangoes and 2kg of oranges on a day was found to be rs180. After a month, the cost of 4 kg of mangoes and 3 kg of oranges is rs300. Represent the situation algebraically and graphically.
Answers
Answer:
case1:
2x+y=160 ..............eq1
case 2:
4x+2y=300 .......................eq2
divide equation 2 on both side by 2
2x+y=150 ..............................eq 3
we got two equations 1&3
2x+y=160 &2x+y=150
then put simanteniously x and y values
in eq 1 in eq 3
2x+y=160 2x+y=150
x=50 x=50
100+y=160 100+y=150
y=60 y=50
x=30 x=30
60+y=160 60+y=150
y=100 y=90
then mark this point on graph and you will find that both the lines will be parallel to each other