A10.0cm^3 sample of copper has a mass of 89.6 g. what is the density of copper? a. 6.5 g/cm^3 b. 9.5 g/cm^3 c. 8.96 g/cm^3 d. 11.2 g/cm^3

The correct answer is option C.

Step-by-step explanation:

To calculate density of a substance, we use the equation:

We are given:

Density of liquid = D

Mass of copper= 89.6 g

Volume of copper =

Putting values in above equation, we get:

is the density of copper.

If 2 for every 3 students are in the activity, and there are 600 total students, then you can use ratios to find how many students in this after school activity.

2:3 is the ratio we are given.
We need to find x in x:600, with 600 being the total number of students.

2:3 and x:600 must be equivalent ratios.
This means we can divide 600 by 3 and multiply that by 2 to get x.

600 / 3 = 200
2 • 200 = 400

2:3 = 400:600
2:3 and 400:600 are equivalent.

The ratio 400:600 means that 400 students out of the 600 total students participate in this after school activity.

400 students are in this after school activity.

In ratio form:
400:600

Hope this helps!