On Sunday, Audrey travels Eastward from Guam to Hawaii in 7 hours and 30 minutes. Did she travel back in time?
Yes. Audrey starts from Guam (+10) and ends in Hawaii (-10). She went back 24 hrs by travelling Eastward across the International Dateline. +10-24-10+7.5=-16.5
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15
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15
Jacob has two cats that go out exploring before coming home to eat. His grey cat returns every 9 hours and his black cat returns every 11 hours. When is the next time that both cats will be back home to eat at the same time?
99 hours from now 9x11=99 (4 days and 3 hours)
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15
Tirian hypothesizes that a broken candy wonโt last as long as a whole candy. To test his theory, which extra accurate lab equipment would be most helpful? Super-accurate: stopwatch, weighing scale, thermometer, or camera (explain why)
Super-accurate weighing scale because the test wonโt be โfairโ if the starting weights are not equal.
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15
Convert 10 to -7 pounds to milligrams (1 lb = .4536 Kg) (round to the hundredth place)
.05 mg (1 lb = 453600 mg so 10 to -7 lbs = .04536 mg which rounds up to .05) (a grain of salt = .06 mg)
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lifesaver
Give 25 points!
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gift
Win 25 points!
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gift
Win 5 points!
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baam
Lose 10 points!
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15
Jacob made a 20-layer masterpiece sandwich that weighed 1.5 lbs! Each Turkey slice weighs 1.2 oz, while the Provolone slices are .8 oz. If the bread & condiments weighed 4 oz, what was his ratio of meat to cheese? 1lb=16oz
1:1 10x1.2+10x.8=20 20+4=24 24/16=1.5
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15
Caleb has 15 blue frosted cupcakes and enough decorations for 10 of them. He wants to make as many cupcake plates as possible that have the same combination of decorated & undecorated cupcakes. How make cupcake plates can Caleb make?
Daylight Savings: California shifts time forward 1 hr in Spring and back 1 hr in Fall. Is it possible to accurately predict sunrise and sunset times for Los Angeles, California for the year 2030 without time travelling?
Yes. The sunโs position relative to LA is predictable. Daylight Savings time shifts are also predictably scheduled.
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15
Tirian helps Idayla sell shirts for half of the profits. Tie-dye shirts cost $5 to make, while logo shirts cost $6. Tirian sold 20 shirts for $21 each & made $151. How many of each shirt did he sell?
How many seconds are shown? (round to the nearest second)
83 60+23=83 (44/100 rounds down)
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15
Jude wanted the Red race car to win and noticed that its number is divisible by both 8 & 12. What is the smallest possible number for the Red race car?
24 8=4x2 & 12=4x3 so 4x2x3=24
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15
Gavin has two solar panels, but he is not sure which panel is not working right. Which extra accurate lab equipment would be most helpful for his investigation? Super-accurate: stopwatch, weighing scale, thermometer, or camera (explain why
None really, but a Super-accurate thermometer is likely to provide more information than his other options.