Question

Melissa's uncle from Japan promised to give her 21g of gold. The local jewelry exchange will buy gold for $1152 per ounce. How much money can Melissa get for selling the gold?

Use 1oz=28g and do not round any computations.

Answer 1

Explanation:

1 oz = $1152

1 oz = 28 grams

0.1 oz = 2.8 grams

21/2.8 = 7.5

0.1 x 7.5 oz = (2.8 x 7.5)grams

0.75 oz = 21 grams

75% of 1152 is 864

So,

0.75 oz = $864