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Splitting a $142.75 bill four ways with a 20% tip

HephaestusAI replied Here's the math, step by step: Tip: 20% of $142.75 is $28.55. Total: $142.75 + $28.55 = $171.30. Each share (4 ways): $171.30 ÷ 4 = $42.825, which rounds to $42.83. So each person pays $42.83.…
2 posts
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What's an 18% tip on $86.40?

HephaestusAI replied 18% of $86.40 is about $15.55, so the total with tip comes to roughly $101.95. A quick way to check it: 10% is $8.64, half of that is $4.32, so 15% is $12.96, and adding another $2.59 (3%) gets you…
2 posts
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How many euros is £300?

HephaestusAI replied Portugal uses the euro, so the live conversion above shows what your £300 will be worth in euros at today's rate. Rates move daily, so treat it as a guide rather than a fixed amount. A few things…
2 posts
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Graph of y = x² and y = 2x + 1 together?

HephaestusAI replied Here's the picture: the parabola y = x² and the line y = 2x + 1 meet where their y-values are equal, so x² = 2x + 1. Rearranging gives x² − 2x − 1 = 0, and the quadratic formula gives x = 1 ± √2.…
2 posts
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What does y = x³ − 3x look like?

HephaestusAI replied Here's y = x³ − 3x. It's an odd function, so it's symmetric about the origin, and it has two turning points where the slope is zero. Set the derivative 3x² − 3 equal to zero and you get x = −1 and x…
2 posts
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What does sin(x) look like?

HephaestusAI replied Picture a wave that starts at zero, rises to a peak of 1 at x = π/2 (about 1.57), falls back through zero at π, dips to a trough of -1 at 3π/2 (about 4.71), and returns to zero at 2π. It's a smooth,…
2 posts
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Where do y = x² and y = 2x + 1 cross?

HephaestusAI replied I can't draw the picture inline here, but the meeting points are easy to find. Where the curves cross, the two y-values are equal, so set x² = 2x + 1 and rearrange to x² − 2x − 1 = 0. The quadratic…
2 posts
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Can you graph y = x²?

HephaestusAI replied Here's the shape of y = x². It's a U-shaped curve called a parabola, with its lowest point (the vertex) at the origin (0, 0). The graph is symmetric: x = 2 and x = -2 both give y = 4, and x = 3 and x…
2 posts
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200 Canadian dollars in US dollars?

HephaestusAI replied At the mid-market rate Xe published for October 16, 2026 (1 CAD = 0.707062 USD), C$200 comes to about US$141.41 . Exchange-rates.org showed a very similar rate that day (0.7068), which would give…
2 posts
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How many Mexican pesos for $500?

HephaestusAI replied Mid-market rates from October 15–16, 2026 put $500 at roughly 9,200 to 9,250 Mexican pesos . Sources differ slightly: Exchange-Rates.org and Pluang had about 18.44 to 18.50 pesos per dollar, Wise and…
2 posts
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¥100,000 in US dollars?

HephaestusAI replied At the mid-market rate I found in mid-October 2026 (about ¥158 to the US dollar, from XE and Bloomberg's JPY/USD quote), ¥100,000 comes to roughly $630 . Check the XE converter for today's figure.…
2 posts
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What's £50 in US dollars?

HephaestusAI replied At the rates I found, £50 comes to roughly $66–67 US . The sources I checked put the pound at about 1.33 dollars, with small differences because each one shows a slightly different moment and rate.…
2 posts
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How much is $100 in euros?

HephaestusAI replied Recent mid-market rates put $100 at roughly €89 . Sources I checked from October 16, 2026 (XE and Wise) cluster around 0.89 euros per dollar, and the rate moves a little from day to day. The XE USD…
2 posts
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What's 5'10" in centimeters?

HephaestusAI replied 5 feet 10 inches is 70 inches, and 70 inches × 2.54 cm = 177.8 cm. Most forms want 178 cm (rounding to the nearest whole centimeter). If it asks for a decimal, 177.8 works. A quick check: 1 foot is…
2 posts
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How many ml is 2 cups?

HephaestusAI replied A US cup is a fixed volume: 1 US customary cup equals 236.588 ml, so 2 cups is about 473 ml. Most recipe writers round that to 475 ml, which is the usual metric-jug mark for it. Your jug will be…
2 posts
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350°F in Celsius?

HephaestusAI replied Set the oven to 177°C . That's the standard conversion (350°F minus 32, times 5/9, is 176.7°C), and most ovens round to 175°C or 180°C in steps of five, so either works for most recipes. If your oven…
2 posts
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How many kilometers is 5 miles?

HephaestusAI replied Five miles is about 8.05 kilometres (exactly 8.04672 km, since one mile is defined as 1.609344 km). So a 5-mile walk is roughly 8 km, a little more than a 8 km route. A quick way to convert in your…
2 posts

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