Silver Linear
April 18th, 2011
How to form linear equations?
If i had 2500 coins of silver and gold. each gold coin has a mass of 19.25g estimated value of $310. Each silver coin has a mass of 10.5g and an estimated value of $60. The total mass is 36.295.
what is the total value of the silver and gold combined ? please explain step by step so i can understand how do to this type of question on my exam ! thanks a bunch !
Tild had the right idea but made a subtraction error:
19.25*x+10.5*(2500-x)=36295
Tild should have gotten:
19.25x+26250-10.5x-36295 = 8.75x-10045 = 0
instead of 9.25x
s+g = 2500; 10.5s+19.25g = 36295;
–> silver= 1183000/875= 1352 ; gold= 1004500/875= 1148 ;
so the total value is:
1352*60+1148*310 = 81120+355880 = $437,000
Ho To Fit a Parasol to the Silver Linear – Kiddicare
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