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anonymous
 one year ago
ra has 28¢ in his pocket. He has 20 coins that are either pennies or nickels. How many nickels does Ira have? Explain and show your work. *
anonymous
 one year ago
ra has 28¢ in his pocket. He has 20 coins that are either pennies or nickels. How many nickels does Ira have? Explain and show your work. *

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welshfella
 one year ago
Best ResponseYou've already chosen the best response.1how many cents are there in a nickel and a penny.? (i'm from the UK)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0a penny is one cent and a nickle is 10 cents

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oops nicke is 5 cents

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1ok so if there are x pennies and y nickels then we have the equation x + 10y = 28

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1now we have to fit while numbers to that equation

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1oh also he has 20 coins so that is x + y = 20 so we need to solve the system x + y = 20 x + 5y = 28

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1now if we subtract equation 1 from equation 2 the x will disappear and w'ell get 4y = 8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so first i would multiply then add right?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you have 4 times the number of nickels = 8 so divide by 4

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1442248219603:dw

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no its 8 divided by 4

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok so 8 divided by 4 =2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats the answer right?
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