Chemistry problem!!!!!!!!!!!!!!!!!!!!!!!…

Gold is alloyed (mixed) with other metals to increase its hardness in making jewelry. Consider a piece of gold jewelry that weighs 9.85g and has a volume of 0.675 cm^3. the jewelry contains only gold and silver which have densities of 19.3 g/cm^3 and 10.5 g/cm^3 respectively. uming the total volume of the jewelry is the sum of the volumes of the gold and silver that it contains, calculate the percentage of gold(by m) in the jewelry.