* Which is performing more efficiently? A car getting 12 km per liter of gas or one getting 25 miles per hour?
* _______ hectares (ha) = 65,000 square meters (sq m) (EXACT answer)
* 1200 grams = ________ pounds
* A cubic centimeter is :
A cube with an area of 1 sq cm
A cube with a length of 1 cm
A cube with an area of 1 cm
A cube with a volume of 1 cu cm.
your first question makes no sense. You are comparing fuel consumption with speed.
I will assume you meant 25 miles/gallon?
and you are using US gallons.
1 mile = 1.609 km and 1 US gallon = 3.79 litres.
so 25mil/gall = 25*1.609km/3.79litres
= 10.6km/litre
BTW, fuel consumption in the metric system is not expressed as so many km per litre but rather
x litres/100km
So in our display on a car it might say
fuel consumption: 7.7
so the lower the number the better.
Your second question is a matter of looking up the units, try it
for the third what is 1*1*1 ?
- Oh, definitely the car getting 25 miles per hour! It's always good to have a car that can keep up with the speed limit. Poor little car getting only 12 km per liter of gas must be feeling a bit sluggish. Maybe it needs a cup of coffee?
- Alright, it's time for some math magic! If 65,000 square meters equals a certain amount of hectares, then the exact answer would be... *drumroll*... 6.5 hectares! Ta-da!
- Oh, conversions! Let's see, 1200 grams... Hmm, how about we round that to two and a half pounds? Although, I have to say, it's not easy trying to imagine what two and a half pounds of literature would look like. That's a lot of paper!
- Ah, a pop quiz! A cubic centimeter is a cube with a length of 1 cm. It's like a tiny little block that you can stack with other tiny little blocks. Just don't get carried away, or you might end up with a teeny-tiny skyscraper!
1. To determine which car is more efficient, we need to convert the units to have a common measurement. Since both kilometers per liter (km/l) and miles per gallon (mpg) represent fuel efficiency, we can convert one to the other to compare.
To convert km/l to mpg:
1 km = 0.621371 miles
1 liter = 0.264172 gallons
The car getting 12 km/l can be converted as follows:
12 km/l * (0.621371 miles / 1 km) * (1 liter / 0.264172 gallons) = 28.235 mpg
Therefore, the car getting 12 km/l is more efficient than the one getting 25 mpg.
2. To find the number of hectares that are equivalent to 65,000 square meters, we need to use the conversion factor:
1 hectare (ha) = 10,000 square meters (sq m)
So, to calculate the answer:
65,000 sq m / 10,000 sq m/ha = 6.5 hectares
Therefore, 6.5 hectares are equal to 65,000 square meters.
3. To convert 1200 grams to pounds, we need to use the conversion factor:
1 pound = 453.592 grams
So, to calculate the answer:
1200 grams / 453.592 grams/pound = 2.64553 pounds (rounded to five decimal places)
Therefore, 1200 grams are equal to approximately 2.64553 pounds.
4. A cubic centimeter (cc or cm3) is a cube with a volume of 1 cubic centimeter.
To determine which car is performing more efficiently, we need to convert the units to a common measurement.
To convert from km per liter (km/L) to miles per gallon (mpg), we can use the following conversion factors:
1 km = 0.621371 miles
1 liter = 0.264172 gallons
Car A is getting 12 km per liter, so we can calculate its efficiency in mpg as follows:
12 km/L * 0.621371 miles/km * 0.264172 gallons/L = 2.352 mpg
Car B is getting 25 miles per hour (mph), which doesn't need any conversion.
Comparing the two, Car A is getting 2.352 mpg, while Car B is getting 25 mph. Therefore, Car B is performing more efficiently.
To find the exact answer for a conversion between hectares (ha) and square meters (sq m), we can use the conversion factor:
1 hectare = 10,000 square meters
So to find the number of hectares in 65,000 square meters, we divide the area by the conversion factor:
65,000 sq m / 10,000 sq m/ha = 6.5 hectares
Therefore, exactly 6.5 hectares equal 65,000 square meters.
To convert grams to pounds, we can use the conversion factor:
1 pound = 453.592 grams
So to find the number of pounds in 1200 grams, we divide the weight by the conversion factor:
1200 g / 453.592 g/lb = 2.6455 pounds (rounded to four decimal places)
Therefore, 1200 grams is approximately 2.6455 pounds.
A cubic centimeter (cc or cm^3) is a cube with a volume of 1 cubic centimeter. It is equivalent to the volume of a cube with sides that are each 1 centimeter long. A cubic centimeter is not related to area, but rather volume.