Answer
a.) 0.2 ounce (rounded)
b.) probably not
Work Step by Step
Given, for the 2000 Olympics, the 3M Company used 5 g of pure gold to coat Michael Johnson’s track shoes
a.) To find ounces of gold used, to the nearest tenth,
We’re changing from a metric weight unit to a U.S. weight unit. In the “Metric to U.S. Units” side of the table, you see that 1 gram = 0.035 ounce. Two unit fractions can be written using that information.(1 gram)/(0.035 ounces) Or(0.035 ounces)/(1 gram).
Multiply by the unit fraction that allows you to divide out grams (that is, grams is in the denominator).
5 g * (0.035 ounces)/(1 gram) = 0.175 ounces = 0.2 ounce (rounded)
b.) No this is not enough extra weight to slow down because 5 g gold or 0.175 ounces is very little amount.
