a Dime. 10 cents
$2.50: A quarter is 25 cents, which is $.25. 0.25 x 10 =$2.50
68
Three coins that equal 80 cents could be a quarter (25 cents), a quarter (25 cents), and a half-dollar (50 cents). This combination adds up to a total of 80 cents.
There are multiple ways to make 80 cents using a combination of coins. One way is to use 8 dimes, another is to use 4 quarters and 2 nickels, or you could also use 40 pennies. These are just a few examples of the various combinations that can add up to 80 cents.
One dime is worth 10 cents, so 8 dimes is 80 cents.
Two dimes, a nickel, and 10 pennies. A good question is how do you figure that out. I started out eliminating the coins that could not be included. If one coin was a quarter, the other 12 had to add up to 10 cents. That can't happen so there can't be any quarters in the answer. Then I knew that the number of pennies had to be 0, 5, or 10 since there is no way for the remaining dimes and nickels to to add up to 35 cents if there were another number of pennies. If you had 5 pennies, then 8 coins would have to add up to 30 cents. Even using all nickels would only use up 6 coins so there had to be more pennies. I then went to 10 pennies and that left 3 coins to get to 25 cents. That's where I came up with 2 dimes, 1 nickel, and 10 pennies.
80 cents
add how much money you spent on materials and double it. add 10 cents tax for every item you bought to make the scarf
To find two numbers that add up to 80, we can set up an equation x + y = 80, where x and y are the two numbers. There are infinitely many pairs of numbers that satisfy this equation, but a common pair would be 40 and 40. Another pair could be 50 and 30, or 60 and 20. These pairs all add up to 80.
It jumped from 25-30 cents a gallon up to 75-80 cents
There aren't two whole numbers that satisfy those conditions. If that was -80, you could use 8 and -10.