Drummerchardviz
Answered

Pure gold is 24 karats. If a piece of jewelry is marked “18-karat gold”, what percent pure is it?

Sagot :

Mlcparra16viz
We just need to find the rate, so we are given with the percentage and base which are 18 and[tex]Rate= \frac{Percentage}{Base} = \frac{18}{24} = \frac{3}{4} =0.75[/tex] 24 respectively.

Therefore it is 0.75*100=75% pure gold.
Jers15viz
To find the percent, divide the number by the total, simply:

18 divided by 24 is 75%

 Meaning, the other 25% is fake. Hope this helps =)