Question

# The density d of an object is found by dividing the mass m of the object by its volume V. Which of the following equations gives the mass m in terms of d and V ?

## The correct answer is:

### The density d of an object can be found by dividing the mass m of the object by its volume V. To express this expression symbolically as

Multiplying both sides by V or

Solving this equation for m gives

m = dV.

Options B, C, and D are incorrect and will likely the result of errors made when translating the definition of density into an algebraic equation and errors made when solving this equation for m.

If the equations given in choices B, C, and D are each solved for density d, none of the resulting equations are equivalent to d = mV

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For example, Knowledge of consumer purchasing patterns can be used to understand product demand better and increase sales.**Types of Survey Methods**

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Online Survey

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Online Survey

Paper Survey

Telephonic Survey

Face-to-Face Interview

The formula above is used to estimate the ideal quantity, *Q*, of items a store manager needs to order given the demand quantity, *d*; the setup cost per order, *K*; and the storage cost per item, *h*. Which of the following correctly expresses the storage cost per item in terms of the other variables?

**Note:**

Whenever there is an equation with a square root involved, first we try to remove that square root to get a clear picture of the equation. It is easier to operate on an equation with no square roots or log or inverse.

The formula above is used to estimate the ideal quantity, *Q*, of items a store manager needs to order given the demand quantity, *d*; the setup cost per order, *K*; and the storage cost per item, *h*. Which of the following correctly expresses the storage cost per item in terms of the other variables?

**Note:**

Whenever there is an equation with a square root involved, first we try to remove that square root to get a clear picture of the equation. It is easier to operate on an equation with no square roots or log or inverse.