Example Question - price calculation
Here are examples of questions we've helped users solve.
Comparison of Food Package Prices
Let the price per pack of macaroni be \(x\) RM and the price per pack of pizza be \(y\) RM. For the Ruby package: <p>\(7x + 3y = \text{Price of Ruby Package}\)</p> For the Emerald package: <p>\(4x + 6y = \text{Price of Emerald Package}\)</p> Solve these two linear equations simultaneously to find \(x\) and \(y\), the prices per pack of macaroni and pizza respectively.
Calculating the Final Price After Two Consecutive Discounts
<p>Let the original price of the boots be \( P \). According to the question, \( P = 200 \) euros.</p> <p>The price after the first discount of \( 15\% \) is \( P_1 = P \times (1 - \frac{15}{100}) = 200 \times (1 - \frac{15}{100}) = 200 \times 0.85 = 170 \) euros.</p> <p>The price after the second discount of \( 10\% \) on the new price \( P_1 \) is \( P_2 = P_1 \times (1 - \frac{10}{100}) = 170 \times (1 - \frac{10}{100}) = 170 \times 0.9 = 153 \) euros.</p> <p>Therefore, the final price of the boots after the second discount is \( 153 \) euros.</p>
Calculating Café Mocha's Monthly Earnings from Coffee Sales
<p>For April:</p> <p>Number of cups sold = 560</p> <p>Price per cup = \$1.98</p> <p>Total earnings for April = Number of cups sold \times Price per cup</p> <p>Total earnings for April = 560 \times 1.98</p> <p>Total earnings for April = \$1108.80</p> <p>For May:</p> <p>Number of cups sold = 387</p> <p>Price per cup = \$2.25</p> <p>Total earnings for May = Number of cups sold \times Price per cup</p> <p>Total earnings for May = 387 \times 2.25</p> <p>Total earnings for May = \$870.75</p>
Book Pricing Analysis
Đầu tiên, chúng ta sẽ giải quyết câu hỏi 34 trong hình ảnh: Giá ban đầu của cuốn sách là 15,000 đồng. - Khi tăng giá 15%, giá mới sẽ là: \( 15,000 + 15\% \times 15,000 = 15,000 + 0,15 \times 15,000 = 15,000 + 2,250 = 17,250 \) đồng. - Khi giảm giá 20%, giá mới sẽ là: \( 15,000 - 20\% \times 15,000 = 15,000 - 0,20 \times 15,000 = 15,000 - 3,000 = 12,000 \) đồng. Vậy sau khi tăng giá 15%, giá cuốn sách sẽ là 17,250 đồng và sau khi giảm giá 20%, giá cuốn sách sẽ là 12,000 đồng.
Finding the Original Price of a TV with a 15% Discount
The question appears to contain a small error, mentioning both a TV and a laptop. However, based on the information provided, we will proceed with the assumption that we are finding the original price of the TV. The TV is sold at a 15% discount, which means the price of $2400 is 85% of the original price (because 100% - 15% = 85%). To find the original price, we can set up an equation where the original price is represented by \( P \): \( 0.85P = $2400 \) Now, to find \( P \), we divide both sides by 0.85: \( P = \frac{$2400}{0.85} \) \( P = $2823.53 \) Therefore, the original price of the TV was approximately $2823.53.
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