Question

John bought three wooden cots costing $1050 each. If he had $4000 in his checking account, write a numerical expression, and then find his balance after he paid for the wooden cots.
$750
$-850
$850
$-750

Answer 1

To find John's balance after he bought the three wooden cots, we first need to calculate the total cost of the cots.

Each cot costs $1050, and he bought three cots, so the total cost is:

\[
3 \times 1050 = 3150
\]

Next, we can write a numerical expression to represent John's balance after making the purchase:

\[
\text{Balance after purchase} = \text{Initial balance} - \text{Total cost of cots}
\]

Substituting the values we have:

\[
\text{Balance after purchase} = 4000 - 3150
\]

Now, we perform the calculation:

\[
4000 - 3150 = 850
\]

So, after paying for the wooden cots, John's balance is **$850**.