Question

A school needs to buy new notebook and desktop computers for its computer lab. The notebook computers cost $275 each, and the desktop computers cost $350 each. How much would it cost to buy 20 notebooks and 15 desktop computers? How much would it cost to buy nn notebooks and dd desktop computers?

Answer 1

To calculate the total cost for 20 notebooks and 15 desktop computers: multiply each number by their respective cost and add the totals together, resulting in $10,750. For 'n' notebooks and 'd' desktop computers, use the formula C = ($275 × n) + ($350 × d) to find the total cost.

Step-by-step explanation:

To find out how much it would cost to buy 20 notebooks and 15 desktop computers, we can multiply the number of each type of computer by their respective costs and then add the two amounts together. The cost of one notebook is $275, and the cost of one desktop computer is $350.

• Cost of 20 notebooks: 20 × $275 = $5,500
• Cost of 15 desktop computers: 15 × $350 = $5,250

The total cost for 20 notebooks and 15 desktop computers will therefore be:

$5,500 (notebooks) + $5,250 (desktops) = $10,750

For n notebooks and d desktop computers, the formula to calculate the total cost (C) is:

C = ($275 × n) + ($350 × d)