kevin is working with a group of community volunteers to replace rotting boards over the river walkway. they need to replace 7 boards that are each 3/4 feet long. how many total feet of board will they need for the job? This is a multiplication problem, because we have 7 sets of the same item. set up the multiplication expression.

Question

________ft

Answer 1

To find the total length of the boards needed, you can set up the multiplication expression as follows:

7 boards × \( \frac{3}{4} \) feet/board

This can be written as:

\[ 7 \times \frac{3}{4} \]

Now, let's calculate it:

\[ 7 \times \frac{3}{4} = \frac{21}{4} \]

To convert \( \frac{21}{4} \) into a decimal or feet, divide 21 by 4:

\[ \frac{21}{4} = 5.25 \] feet.

So, they will need a total of 5.25 feet of board for the job.