anonymous
  • anonymous
please help me do #12. and please show work if you would so that I can learn it, thanks
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
pokemon23
  • pokemon23
I hate these kind of questions
anonymous
  • anonymous
yes me too.

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A_clan
  • A_clan
First I need to know, What is the value of 1 nickel and 1 dime ?
A_clan
  • A_clan
Let no. of nickels=n Let no. of dimes=d n-d=4 ....................Eqn(1) (value of 1nickel)*n + (value of 1 dime)*d = $2.45 ..........Eqn(2)
anonymous
  • anonymous
great, what next?
A_clan
  • A_clan
Substitute eqn 1 in eqn 2
anonymous
  • anonymous
Yikes, can you show me what that looks like
A_clan
  • A_clan
(value of 1nickel)*n + (value of 1 dime)*(n-4)= $2.45
A_clan
  • A_clan
You will get an eqn in one variable, n
anonymous
  • anonymous
im sorry im not following, I don't know what to do with all of the information
anonymous
  • anonymous
what are my equations?
anonymous
  • anonymous
or what is n and what is d?
A_clan
  • A_clan
Let no. of nickels=n Let no. of dimes=d
anonymous
  • anonymous
ok
A_clan
  • A_clan
Given in problem, n-d=4 ....................Eqn(1)
A_clan
  • A_clan
Given in problem, The value of all the coins together=$2.45
anonymous
  • anonymous
right
A_clan
  • A_clan
Value of all the nickels in bank=(Value of 1 nickel) * n =($0.05)*n Value of all the dimes in bank=(Value of 1 dime) * d =($0.10)*d The value of all the coins=($0.05)*n + ($0.10)*d which is equal to $2.45
A_clan
  • A_clan
So, the second equation ($0.05)*n + ($0.10)*d=$2.45 .................eqn(2)
anonymous
  • anonymous
so how many nickels and dimes? once you show me this part i will understand how to do the whole problem
anonymous
  • anonymous
please show me the two equations working together
anonymous
  • anonymous
isn't it four more nickels than dimes, isn't that d+4=2.45
anonymous
  • anonymous
i mean d + n=4 ?
anonymous
  • anonymous
i don't know
anonymous
  • anonymous
Let the no. of nickels be x. Let the no. of dimes be y. four more nickels than dimes mean no of dimes(y)+4=no of nickels(x) Cn u just tel me the value of 1 nickel and dime?

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