While studying a mineral ore, a scientist found that 37/1/2% of the ore was quarts. If the mass of the quartz was 56.25 g, what was the actual mass of the mineral ore?

Answer 1

To can represent this problem with an equation that can be solved to find the mass of the ore:

Let's use the variable, x, to represent the mass of the ore. Then:

37.5% of x is equal to 56.25 grams

NOTE - 37.5% can be written in decimal form as 0.375

In equation form:

0.375 • x = 56.25

Divide both sides of the equation by 0.375:

x = 150 grams

The mass of the ore is 150 grams .