Question 994672: in order to control certain type of diseases,it is necessary to use 23 litres of chemical A and 34 litres of chemical B.The dealer can order commercial spray,I each container which hold 5 litres of chemical A and 2 litres of chemical B and commercial spray II,each container which hold 2 litres of chemical A and 7 litres of chemical B.How many container of each type of commercial spray should be used to get the exact proportion of chemical needed ?
Answer by josgarithmetic(39617)   (Show Source):
You can put this solution on YOUR website! VARIABLES
x, count of sprayer I
y, count of sprayer II
ACCOUNT FOR CHEMICAL VOLUMES OF A and B
A:
5x+2y=23
B:
2x+7y=34
Solve the system of the two equations for x and y.
|
|
|
