Calculate \( (63 \times 0)+(36 \times 1)+(10 \div 2)-(8 \times 5) \) A watch was bought for R250 and sold for R3T5. Did they make a profit or loss. Calculake the profit \( 1105 s \). Rhanzu goes to fetch 20 L of water every morning and every evening. How much water will she fetch 2 weeks. if 5 L of paint costs R210. What will 15 L cost. water from a tap flows into a bath of a ratio of \( 750 \mathrm{ml} ~ 5 \). How long will it take to fill a both with 120 L of water ( \( 1 \mathrm{l}=1000 \mathrm{ml} \).
Solución de tutoría real
Responder
Solución
Revisado y aprobado por el equipo de tutoría de UpStudy
Extra Insights
To solve \( (63 \times 0)+(36 \times 1)+(10 \div 2)-(8 \times 5) \): - Start with \( (63 \times 0) \) which is \( 0 \). - \( (36 \times 1) \) gives \( 36 \). - \( (10 \div 2) \) results in \( 5 \). - \( (8 \times 5) \) equals \( 40 \). So, the calculation becomes \( 0 + 36 + 5 - 40 = 1 \). For the watch, it was bought for R250 and sold for R3T5 (R375). To determine profit or loss: - Profit = Selling price - Cost price = R375 - R250 = R125. Hence, they made a profit of R125. Calculating profit: To calculate the profit of R1105, it would depend on the cost price. If R1105 is the selling price with no cost price given, we need that info to determine profit/loss. For Rhanzu fetching 20 L of water every morning and evening (total of 40 L daily), over 2 weeks: - In 14 days (2 weeks), she would fetch \( 40 \, \text{L/day} \times 14 \, \text{days} = 560 \, \text{L} \). For paint, if 5 L costs R210, then for 15 L: - \( 15 \, \text{L} = 3 \times 5 \, \text{L} \), thus \( 3 \times R210 = R630 \). Filling a bath with water flowing at a rate of 750 ml in 5 minutes: - Convert 120 L to ml: \( 120 \, \text{L} = 120,000 \, \text{ml} \). - If \( 750 \, \text{ml} \) takes 5 minutes, the total time for \( 120,000 \, \text{ml} \) is \( \frac{120,000}{750} \times 5 \). - This results in \( 160 \times 5 = 800 \) minutes. In summary, Rhanzu fetches 560 L of water, 15 L of paint costs R630, and it will take 800 minutes to fill the bath!