Question

Fill in the blank with the choices below, and tell me what does x = to

Answer 1

The information given is;

`\begin{gathered} 2\text{pennies}=5\text{grams} \\ 12\text{pennies}=\text{?} \end{gathered}`

To set up a proportion we shall take the weight of 12 pennies (unknown) to be represented by x. Therefore, we would have;

`\frac{2\text{pennies}}{5\text{grams}}=\frac{12\text{pennies}}{x\text{ grams}}`

In order words we would have;

`(2)/(5)=(12)/(x)`

Cross multiply and you'll have;

`\begin{gathered} x=(12*5)/(2) \\ x=(60)/(2) \\ x=30 \end{gathered}`

ANSWER:

x = 30 grams