Question 187660
Write the ratio of the mass of the gold in the ring to the mass of the ring:
{{{x/0.4}}} and this is equal to {{{18/24}}}
{{{x/0.4 = 18/24}}} Solve this proportion by cross-multiplying.
{{{24x = (0.4)18}}} Now divide both sides by 24.
{{{x = 7.2/24}}}
{{{x = 0.3}}}ounces of gold in the ring. Multiply this by $300 per ounce to find the value of the gold in the ring.
{{{0.3(300) = 90}}}
The value of the gold is $90.00