Tina sold cookies at her clubs bake sale. She spent $18.50 on supplies. She sold her cookies for $0.75 each and made a profit of $24.25. Write and solve an equation to find how many cookies Tina sold.

Let x = number of cookies sold

Equation: 0.75x - 18.50 = 24.25

add 18.50 to both sides of the equation
0.75x = 42.75
divide both sides of the equation by 0.75
x = 57
Tina sold 57 cookies.

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sheenuvt12 sheenuvt12 · Answer 2 · 2022-08-22T06:56:09+02:00

Tina had 57 cookies.

What is Algebra?

Algebra is a branch of mathematics that deals with symbols and the arithmetic operations across these symbols. These symbols do not have any fixed values and are called variables. In our real-life problems, we often see certain values that keep on changing. But there is a constant need to represent these changing values.

An algebraic expression in algebra is formed using integer constants, variables, and basic arithmetic operations of addition(+), subtraction(-), multiplication(×), and division(/). An example of an algebraic expression is 5x + 6. Here 5 and 6 are fixed numbers and x is a variable.

Let x be the number of cookies sold

the equation

0.75x - 18.50 = 24.25

=0.75x = 42.75

= 57

Hence, Tina sold 57 cookies.

Learn more about algebra here:

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