Tutors Answer Your Questions about Reduction-of-unit-multipliers (FREE)
Question 1118132: 1.While in Canada, you rent a car and discover that the speed limit on the highway is 90
km/hr. What is the equivalent value in mi/hr? (Round to nearest whole number.)
b. Multiple choice. What is the most likely mistake made by the nurse who wrote on the chart?
a. The nurse meant the units to be ounces.
b. The nurse added an extra 0, and the chart was supposed to read 60 kg.
c. The nurse meant the units to be grams.
d. There’s no mistake. 600 kg is the correct weight for the sick grandmother.
Part 2 – A vacation with a trip to the hospital!
2. First let’s go on a trip! You come into some money and decide to go to Canada where
the exchange rate is 1.04 Canadian dollars to 1 US dollar. You have $1000 US to take
with you. What is the equivalent value in Canadian dollars? (Round to whole Canadian
Dollar.)
3. While in Canada, you rent a car and discover that the speed limit on the highway is 90 km/hr. What is the equivalent value in mi/hr? (Round to nearest whole number.)
4. Oh no! You wake up with a fever! All you can find at the store is Aspirin, and the bottle says to take 500 mg. The bottle also says each tablet has 125 mg in each tablet. How many tablets should you take?
Click here to see answer by ikleyn(52781)   |
Question 1120566: An alcoholic drink has 5.5% alcohol by volume. The label on a 375 mL bottle says it contains 1.6 standard drinks.
A) how many mL of alcohol are in a 375 mL bottle?
B) it is recommended that a fully licensed male driver should have a maximum of one standard drink every hour. Express this as a rare in mL/ minute, correct to 3 significant figures
Click here to see answer by josmiceli(19441)  |
Question 1122359: The following information was reported in an article in a newspaper. A sheriff reported that investigators found 8.5 kilograms of cocaine in a car belonging to a man who lives in Virginia. This is a significant amount of cocaine, having a street value of about $1.6 million dollars.
Assume that a typical dose contains half a gram of pure cocaine. How much would a dose cost? (Round your answer to the nearest dollar.)
Click here to see answer by solver91311(24713)  |
Question 1122619: Tom Quig traveled 250 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 6 hours, how many miles did he drive at the reduced speed?
Click here to see answer by josgarithmetic(39617) |
Question 1123510: You want to travel to the Moon by bicycle and let's suppose that there was a flat road all the way. Let's use a distance to the Moon of 240,000 miles. If you rode 12 hours/day, how many years would it take for you to get to the Moon? You'll need to make an estimate of one final piece of information. For you answer, give no more than 2 significant digits.
Click here to see answer by greenestamps(13200)  |
Question 1123510: You want to travel to the Moon by bicycle and let's suppose that there was a flat road all the way. Let's use a distance to the Moon of 240,000 miles. If you rode 12 hours/day, how many years would it take for you to get to the Moon? You'll need to make an estimate of one final piece of information. For you answer, give no more than 2 significant digits.
Click here to see answer by josgarithmetic(39617) |
Question 1126109: Four girls, Georgia, Henrietta, Isabelle, and Jackie, all enjoy running. They are discussing running when Georgia ask "What is your fastest speed that you have ever gone"? The girls answer in the following way: Georgia, "I ran 100 meters in 20 seconds." Henrietta, "I can run 7 miles an hour." Isabelle, "I ran 5 kilometers in 30 minutes." Jackie, "I ran a half marathon in 2 hours." Convert the distances to kilometers and put the girls in order from slowest to fastest.
Click here to see answer by josgarithmetic(39617) |
Question 1126594: Using the Factor Label Method.
Your car can drive 430 miles on a tank of 26 gallons.
a) How far can it drive on 57 gallons? Round your answer to the nearest mile.
57/1 * ?/? = miles
b) How many gallons are needed to drive 1,190? Round your answer to the nearest tenth of a gallon.
1,109/1 * ?/? = Gallons
Click here to see answer by josgarithmetic(39617) |
Question 1129031: A swimmer wants to get better at swimming for longer and longer distances. She wants to calculate how many miles she swims. She sets up the following dimensional analysis problem. What are the units for the missing ratio in this dimensional analysis problem?
laps/meters*___/___*feet/mile=laps/mile
A) feet/meters
B)meters/feet
C)laps/feet
D)miles/meters
E)meters/miles
I think it is either B or D. But I'm not sure. Thanks!
Click here to see answer by Boreal(15235)  |
Question 1130444: A lot with dimensions 130 ft by 75 ft is to be sold for $6700. What is the price per acre?
Thanks for your time!! Please keep in mind, if possible, that this is in preparation for a chemistry exam and our teacher would like us to be mindful of significant figures.
Click here to see answer by Alan3354(69443)  |
Question 1130445: One gallon of gasoline in an automobile's engine produces on the average 9.5 kg of carbon dioxide, which is a greenhouse gas, that is, it promotes the warming of Earth's atmosphere. Calculate the annual production of carbon dioxide in kilograms if there are 40 million cars in the United States and each car covers a distance of 5250 miles at a consumption rate of 24 miles per gallon.
Thanks for your time! If possible, an answer in kilograms would be appreciated!
Click here to see answer by josmiceli(19441) |
Question 1130711: Two long distance runners start from the same point on a quarter-mile oval track. Alex runs at a constant speed of exacly 10.98MPH, and Kelly runs at a constant speed of exacly 10.65MPH. How many feet will they be away from the starting point when Alex laps Kelly the SECOND time.
Click here to see answer by josgarithmetic(39617) |
Question 1130711: Two long distance runners start from the same point on a quarter-mile oval track. Alex runs at a constant speed of exacly 10.98MPH, and Kelly runs at a constant speed of exacly 10.65MPH. How many feet will they be away from the starting point when Alex laps Kelly the SECOND time.
Click here to see answer by ikleyn(52781) |
Question 1132685: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass of our sun, but occupying less space than our moon. Suppose that one of these black holes has a mass of 1×10^3 suns and a radius equal to one-half the radius of our moon.
What is the density of the black hole in g/cm^3? The radius of our sun is 7.0×10^5km and it has an average density of 1.4×10^3kg/m^3. The diameter of the moon is 2.16×10^3 miles.
Click here to see answer by josmiceli(19441) |
Question 1135725: s=30fd can be used to find a cars speed s in miles per hour given the length d in feet of a skid mark and the friction factor f of the road. Police measured a skid mark of 90 feet on a dry concrete road, the friction factor is 0.8. If the speed limit is 35, was the car speeding ?
Click here to see answer by josgarithmetic(39617) |
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