Lindsey has 47 coins in her change purse that are either dimes or quarters. If n represents the number of quarters she has,write an expression in terms of n that describes the number of dimes
We let the unknowns using variables:
Let n = number of quarters
Let k = number of dimes
Note that the sum or total of quarters and dimes is 47. Therefore, we can say that
n + k = 47
Since we need to find the number of dimes (which is k) in terms of umber of quarters (that is n), from the above equation,
k = 47 - n
Hope this helps~ :3
If n represents the number of quarters Lindsey has, then the expression that describes the number of dimes she has can be found by subtracting the number of quarters from the total number of coins.
The total number of coins Lindsey has is 47, so the expression can be written as:
Number of dimes = 47 - n
To find an expression that describes the number of dimes in terms of the number of quarters (n), we need to understand the relationship between dimes and quarters.
We know that Lindsey has a total of 47 coins, which are either dimes or quarters. Let's assume that she has x dimes. Since the number of coins is the sum of the number of dimes and the number of quarters, we can write the equation:
x + n = 47
To express the number of dimes in terms of n, we can solve this equation for x:
x = 47 - n
Now, we have an expression in terms of n that describes the number of dimes.