What is the density of a substance that weighs 340g and has a volume of 40cm3?

8.5 g/cm³

Explanation:

The density of a substance can be found by using the formula

From the question we have

We have the final answer as

8.5 g/cm³

Hope this helps you

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

Sorry i dont understand the question can you rephase it?