Posted by **Lee** on Tuesday, November 23, 2010 at 2:19am.

Please explain with complete step by step instructions.

#8)One type of lawn fertilizer consists of a mixture of nitrogen, phosphorus and potassium. An 80lb sample contains 8 move lbs of nitrogen and phosphorus than potassium. There is 16lb more potasssium than 5 times the amount of phosphorus. Let x be the amount of nitrogen, let y be the amount of phosphorus and let z be the amount potassium in the sample. Find the amount of each of the chemicals in the sample.

X = _____

y = _____

z = _____

(Hint: you must set up and solve a 3 by 3 systems of equations.)

- college -
**drwls**, Tuesday, November 23, 2010 at 6:17am
I will assume that you meant "more" where you wrote "move"

The three equations you have to solve are

X + Y + Z = 80 (pounds)

X + Y - Z = 8

Z = 5Y + 16

The first two equations tell you right away that 2Z = 72, so Z = 36

The last equation tells you that 5Y = 20, so Y = 4.

X + 4 + 36 = 80, so X = 40

- college -
**Lee**, Tuesday, November 23, 2010 at 10:34am
You're correct move is suppose to be more. Thank you so much for explaining this to me. It's very helpful.

## Answer This Question

## Related Questions

- college Algebra - Please explain with complete step by step instructions. #8)One...
- math - I'm not sure of how to solve word problems. The question is,"One lawn ...
- math - I'm not sure of how to solve word problems. The question is,"One lawn ...
- Nitrogen cycle - explain how the phosphorus cycle differs from the nitrogen ...
- math - SHURGRO fertilizer contains 18% ammonia plus carbon compounds.If 80% of ...
- Science - Pineapple has high requirements for the fertilizer elements nitrogen (...
- Quantitative Business Analysis - John uses a liquid fertilizer to grow flowers ...
- College chemistry - A farmer applies 13.50 kg of a fertilizer that contains 10.0...
- Chemistry - 1. Nitrogen monoxide is oxidized in air to give brown nitrogen ...
- Chemistry - 14) A lawn fertilizer is rated as 7.04% nitrogen, meaning 7.04 g of...

More Related Questions