Question

please help me do #12. and please show work if you would so that I can learn it, thanks

Answer 1

I hate these kind of questions

Answer 2

yes me too.

Answer 3

First I need to know, What is the value of 1 nickel and 1 dime ?

Answer 4

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)

Answer 5

great, what next?

Answer 6

Substitute eqn 1 in eqn 2

Answer 7

Yikes, can you show me what that looks like

Answer 8

(value of 1nickel)*n + (value of 1 dime)*(n-4)= $2.45

Answer 9

You will get an eqn in one variable, n

Answer 10

im sorry im not following, I don't know what to do with all of the information

Answer 11

what are my equations?

Answer 12

or what is n and what is d?

Answer 13

Let no. of nickels=n
Let no. of dimes=d

Answer 14

ok

Answer 15

Given in problem,
n-d=4 ....................Eqn(1)

Answer 16

Given in problem,
The value of all the coins together=$2.45

Answer 17

right

Answer 18

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

Answer 19

So, the second equation
($0.05)*n + ($0.10)*d=$2.45 .................eqn(2)

Answer 20

so how many nickels and dimes? once you show me this part i will understand how to do the whole problem

Answer 21

please show me the two equations working together

Answer 22

isn't it four more nickels than dimes, isn't that d+4=2.45

Answer 23

i mean d + n=4 ?

Answer 24

i don't know

Answer 25

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?