Want this question answered?
Be notified when an answer is posted
20 cents is twenty pennies.
312.5g
Let x be the number of pre-1982 pennies and y be the number of post-1982 pennies. You can create a system of two equations based on the information given: 3.1x + 2.5y = 61.16 (total mass equation) x + y = 20 (total number of pennies) From there, you can solve for x and y to find out how many of each type of penny there are.
10 pennies...
100 pennies = 1 British Pound 2,000 pennies = 20 British Pounds
grams
Grams
1980 pennies = $19.80. $19.80 is worth almost $20.
use a scale
a scale
25.0 grams
2,000 pennies in 20 dollars (100 in 1 dollar times 20)(100x20 equals 2,000)