Charlie has $3.15 in his bank which contains only nickels and dimes. There are 9 more nickels than dimes. Then Number of dimes =18
and Number of nickels =27
<h3>What is basic algebra ?</h3>
Mathematical expressions can be used to depict situations or issues, and algebra is the field of mathematics that does this. For a mathematical expression to have meaning, it needs to include variables like x, y, and z as well as mathematical operations like addition, subtraction, multiplication, and division. Algebra is used in every area of mathematics, including coordinate geometry, calculus, and trigonometry. A straightforward algebraic expression is 2x + 4 = 8.
Given that : Charlie has $3.15 in his bank which contains only nickels and dimes. There are 9 more nickels than dimes
Let d be the number of dimes
d + 9 = Number of nickels
A dime = 0.1
nickle is = 0.05
0.1d + 0.05d + 0.45 = 3.15
0.15d = 2.7
d = 18
Number of dimes =18
Number of nickels = 18 + 9
=27
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