You have dimes and quarters in your pocket. there are 12 coins that total $2.25. write and solve a system of linear equations to find the number of dimes and the number of quarters

Hence the System of equation are

There are 5 dimes and 7 quarters in my pocket.

Step-by-step explanation:

Let Number of dimes be 'x'.

Also Number of quarters be 'y'.

Now Given:

Total Number of Coins = 12

So the equation can be framed as;

Also Given:

Total Amount in pocket = $2.25

Now we know that 1 dime = $0.1

Also 1 quarter =$0.25

So the equation can be framed as;

Hence the System of equation are

Now Solving the equation we get;

Now Multiplying equation 2 by 10 we get;

Now Subtracting equation 1 from equation 3 we get;

Now Substituting the value of y in equation 1 we get;

Hence there are 5 dimes and 7 quarters in my pocket.

its 50 miles away from the starting point

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies