SOLUTION: A potting mixture contains 12.0% peat moss and 6.00% vermiculite. How much peat and how much vermiculite must be added to 100kg of this mixture to produce a new mixture having 15.0

Question 1146676: A potting mixture contains 12.0% peat moss and 6.00% vermiculite. How much peat and how much vermiculite must be added to 100kg of this mixture to produce a new mixture having 15.0% peat and 15.0% vermiculite?
Please show all the steps.
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Add p kg of peat moss
Add v kg of vermiculite
Wanted: 15% peat moss and 15% vermiculite

Simplify and solve this system.

.
.

If add corresponding members and simplify that, system to use can be

If do E1 * 3, and E2 by 7, system is

-------kilograms peat moss
-

----------kilograms vermiculite
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