Question

1. calculate the total sales tax (gst 7\\% and pst 8\\%) of the supplies (wood and metal). (2)

\\ 7\\% + 8\\% = 15\\% \\
\\ 15\\% = 0.15 \\
\\ 6.00 \times 0.15 = 0.90 \\

1. calculate the total cost of the supplies. (including sales tax) (2)

\\ 6.00 + 0.90 = \\$6.90 \\

1. if you gave the cashier \\$10, what is the amount you would receive back? (2)

\\ 10.00 - 6.90 = 3.10 \\

1. list three possible combinations of the coins and bills you would receive back.

Explanation:

⚡ Using what you learned: solving percent problems

Step 1: Find the total change amount

From the previous questions, the change to be received back is:

$$ \$10.00 - \$6.90 = \$3.10 $$

Step 2: Identify standard Canadian currency denominations

To make combinations for \$3.10, we can use:

• Bills: \$5 (too large)
• Coins: Toonie (\$2.00), Loonie (\$1.00), Quarter (\$0.25), Dime (\$0.10), Nickel (\$0.05)

Step 3: Create three different combinations

• Combination 1:

$$ 1 \times \$2.00 \text{ (Toonie)} + 1 \times \$1.00 \text{ (Loonie)} + 1 \times \$0.10 \text{ (Dime)} = \$3.10 $$

• Combination 2:

$$ 3 \times \$1.00 \text{ (Loonies)} + 2 \times \$0.05 \text{ (Nickels)} = \$3.10 $$

• Combination 3:

$$ 1 \times \$2.00 \text{ (Toonie)} + 4 \times \$0.25 \text{ (Quarters)} + 2 \times \$0.05 \text{ (Nickels)} = \$3.10 $$

Answer:

Three possible combinations to receive \$3.10 back are:

1. Combination 1: One \$2 coin (Toonie), one \$1 coin (Loonie), and one 10¢ coin (Dime).
2. Combination 2: Three \$1 coins (Loonies) and two 5¢ coins (Nickels).
3. Combination 3: One \$2 coin (Toonie), four 25¢ coins (Quarters), and two 5¢ coins (Nickels).