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A student weighs 1131 pennies and finds them to have a mass of 3001.8 g If the pre-1982 pennies weigh on average 3.09 g and the post-1982 pennies weigh 2.51 g how many of the pennies are post-1982?
Of 1131 pennies, x weigh 3.09 g and y weigh 2.51 g. In total, the 1131 pennies weigh 3001.8 g. 3.09x + 2.51y 1131 = 3001.8 I have no idea what to do after that, or if it's even right. I was thinking maybe dividing, but the number was so small it had to be wrong. Tell me, what grade is this for?
How much do one billion pennies weigh?
1 billion pennies would weigh 5,511,556.55 pounds. The weight of a penny is 2.5 grams
How much do pennies weigh?
Depends on whose pennies (which country) and the force of gravity which is not uniform.
How much is fifty pounds of pennies in dollars?
Depends on their dates. Pennies before 1982 weigh 3.11 grams. Pennies from 1983 to now weigh 2.5 grams. Pennies dated 1982 could weigh either amount. An ounce equals 28.35 grams. Separate your coins into piles by date and get out your calculator.
How much would 7142 pennies weigh?
7,142 pennies weighs about 39.4 (39.3635369)pounds.
How much does a bag of pennies weigh?
How much does a 2 liter of pennies weigh?
How much 9000 pennies weight?
9000 pennies weigh
How much does 5 gallon water jug of pennies weigh?
180.55 pounds. 180 pennies in a pound and there is roughly 32,500 pennies in 5 gallons. 32,500.00 divided by 180= 180.55
If you have 2 10pound buckets one filled with water and one filled with apples which weighs the most?
they would weigh the same
Is a water bottle filled with water weigh more than a pair of scissors?
No it weighs much more!!
How much do 50 pennies weigh?
Modern zinc (1982-present) pennies weigh 2.5 grams each, and copper pennies (pre-1982) weigh 3.11 grams each. 50 new ones weigh 125 grams and 50 old ones weigh 155.5 grams. A mix of the two weighs somewhere in the middle.50 US pennies would weigh about .338 pounds.
How much does 3500 pennies weigh?
One penny weighs 2.5 grams, so 3,500 pennies weigh 8,750 grams.
How much does a five gallon water jug filled with change weigh?
There's no specific answer because coins are different sizes and weights. For example, large dollar coins will not pack as tightly as small dimes, so there will be a lot more air spaces in between. Also, the same size coin may have different weights depending on its date - cents minted before 1982 weigh about 25% more than newer pennies because they're made of different metals. So, even though the same number of old pennies or new pennies will fit in the jug, filling it with old coins will make it heavier than if it were filled with new ones.
If you put a person in a barrel of water will it weigh more or less than if the barrel was filled with only water?
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A student weighs 1131 pennies and finds them to have a mass of 3001.8 g If the pre-1982 pennies weigh on average 3.09 g and the post-1982 pennies weigh 2.51 g how many of the pennies are post-1982?
Of 1131 pennies, x weigh 3.09 g and y weigh 2.51 g. In total, the 1131 pennies weigh 3001.8 g. 3.09x + 2.51y 1131 = 3001.8 I have no idea what to do after that, or if it's even right. I was thinking maybe dividing, but the number was so small it had to be wrong. Tell me, what grade is this for?
How much do one billion pennies weigh?
1 billion pennies would weigh 5,511,556.55 pounds. The weight of a penny is 2.5 grams
How many pennies does it take to weigh 100 pounds?
=It takes EXACTLY 100000000000080200000000008042 pennies!!!!!!!=
