jameskduong
New member
- Joined
- Oct 20, 2021
- Messages
- 5
A gardener has two fertilisers that contain different concentrations of nitrogen. One is 3%
nitrogen and the other is 11% nitrogen. How many pounds of each should she mix to obtain
20 pounds of a 9% concentration?
1. Define the variables if they are not already defined in the problem, i.e. Let x be ................
and y be ................ (10 marks).
2. How many equations do we need to model the problem? Write down the equations in
terms of the variables (20 marks).
nitrogen and the other is 11% nitrogen. How many pounds of each should she mix to obtain
20 pounds of a 9% concentration?
1. Define the variables if they are not already defined in the problem, i.e. Let x be ................
and y be ................ (10 marks).
2. How many equations do we need to model the problem? Write down the equations in
terms of the variables (20 marks).
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