MEDAL AND FAN
LeAnn has 20 coins in her piggy bank. All the coins are either pennies or dimes. The total value of the coins is 83¢. How many pennies are there? How many dimes?
also how to model this besides graphing..?
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OpenStudy (anonymous):
wait what..?
OpenStudy (anonymous):
7 dimes and 13 pennies = 20 coins and 83 cents
OpenStudy (anonymous):
okay thanx do u know a way i could model this besides graphing...?
OpenStudy (anonymous):
not really sry.
OpenStudy (anonymous):
thats okay
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OpenStudy (anonymous):
@Mokeira do u know a way i could model this w/o graphing
OpenStudy (mokeira):
hmmm.... @ganeshie8
OpenStudy (anonymous):
lol
OpenStudy (precal):
20 coins in her piggy bank
x+y=20
OpenStudy (precal):
total value of the coins is 83¢.
All the coins are either pennies or dimes
.01x+.10y=.83
note x is pennies and y is dimes
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OpenStudy (anonymous):
ik....i need a way to model it w/o graphing
OpenStudy (precal):
now solve it ......gotta go
OpenStudy (precal):
that is modeling it with algebra
OpenStudy (mokeira):
nice
OpenStudy (triciaal):
can you close or do you need more help to follow the steps given by @precal and get the solution given by @treybyrd