Question

One pound of ground beef is $3.09. How much is 4.5 pounds? Round to the nearest hundredth, if necessary.

Answer 1

For this case we can solve the problem, applying the following rule of three:

1 pound ---------------> $ 3.09

4.5 pounds -----------> x

From here, we clear the value of x.

We have then:

$x = (\frac{4.5}{1}) (3.09)$

$x = (4.5) (3.09)$

$x = 13.905$

To the nearest hundredth

$x = 13.91$

Answer:

The cost of 4.5 pounds of beef equals $ 13.91.

Answer 2

Since 1 pound is $3.09, 4.5 pounds will be:

$4.5*3.09=13.905$

It says to round to nearest hundredth, so your answer is $13.91.