Question

Ken is building a deck. He determined that he needs 25 blocks that cost $7.97 each and 48 deck boards that cost $14.00 each. How much will Ken pay for these items?

Answer 1

Ken will pay $ 871.25 for these items

Step-by-step explanation

to find the total cost we need add the cost of the blocks to the cost of the total boards, so

Step 1

find the total cost of the blocks

a) when having the cost per unit and the amount, we just need to do a multiplication, so

`\begin{gathered} total\text{ cost= rate*amount} \\ replace \\ tota\text{l cost of the blocks= 7.97}\frac{\text{ \$}}{block}*25\text{ Blocks} \\ tota\text{l cost of the blocks= \$ 199.25} \end{gathered}`

Step 2

now, the total cost of the boards:

`\begin{gathered} total\text{ cost= rate*amount} \\ replace \\ tota\text{l cost of the boards= 14}\frac{\text{ \$}}{board}*4\text{8 boards} \\ tota\text{l cost of the boards= \$ 672} \end{gathered}`

Step 3

finally, add the costs to find the total

`\begin{gathered} total\text{ cost= \$199.25+672} \\ total\text{ cost= 871.25} \end{gathered}`

therefore, Ken will pay $ 871.25 for these items

I hope this helps you