Question

Mr. Rodriguez is preparing photos for an international client. The client has requested a photo that is 20 cm by 15 cm. Mr. Rodriguez knows that the formula c = 2.54n can be used to convert n inches to c centimeters. Which formula can he use to convert centimeters to inches?

Answer 1

Answer:
`n\text{ = }\frac{c}{2.54\text{ }}\text{ \lparen option B\rparen}`

Step-by-step explanation:

Given:

The formula to convert from inches to centimeters is c = 2.54n

To find:

The formula that can be used to convert from centimeters to inches

To determine the formula, we need to make n the subject of formula:

`\begin{gathered} \text{c = 2.54n} \\ where\text{ c = value in cm} \\ n\text{ = value in inches} \end{gathered}`
`\begin{gathered} To\text{ make n, the subject of formula, we will divide both sides by 2.54:} \\ (c)/(2.54)=\text{ }(2.54n)/(2.54) \\ n\text{ = }(c)/(2.54) \\ This\text{ means when we have a value in cm and substitute, the answer will be in inches} \end{gathered}`
`n\text{ = }\frac{c}{2.54\text{ }}\text{ \lparen option B\rparen}`