A store sells 4 notebooks at $2.49 each and 3 pens at $1.25 each. You pay with $20.00. How much change do you receive
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A store sells 4 notebooks at \$2.49 each and 3 pens at \$1.25 each. You pay with \$20.00. How much change do you receive?
To find the total cost of notebooks, we multiply 4 by \$2.49. We can break this down as 4 times 2 plus 4 times 0.49, which equals 8 plus 1.96, giving us a total of \$9.96 for all notebooks.
Now we calculate the total cost of pens by multiplying 3 by \$1.25. Breaking this down, we have 3 times 1 plus 3 times 0.25, which equals 3 plus 0.75, giving us a total of \$3.75 for all pens.
To find the total purchase amount, we add the cost of notebooks (\$9.96) and pens (\$3.75). Adding the whole numbers (9 + 3) gives us 12, and adding the decimals (0.96 + 0.75) gives us 1.71. Combining these, we get a total purchase amount of \$13.71.
To calculate the change, we subtract the total purchase amount (\$13.71) from the payment (\$20.00). We can rewrite \$20.00 as 19 plus 1.00, then subtract 13.71 from 19 to get 5.29, and finally add the 1.00 to get the change of \$6.29.
Let's summarize our solution. First, we calculated the notebook cost: 4 times \$2.49 equals \$9.96. Then, we calculated the pen cost: 3 times \$1.25 equals \$3.75. Adding these together gave us the total purchase amount: \$13.71. Subtracting this from our payment of \$20.00 gave us the change: \$6.29. To verify our answer, we can add the total purchase and change: \$13.71 plus \$6.29 equals \$20.00, confirming our solution is correct.