Question

Solve the system of equations using substitution.
A sorority held a bake sale to raise money and sold brownies and chocolate chip cookies. They priced the brownies at $2 and the chocolate chip cookies at $1. They raised $260 and sold 190 items.
How many brownies and how many cookies were sold?

Answer 1

Enough already with the same question !!!!!

Answer 2

Let's assume that x is the number of brownies sold, and y is the number of chocolate chip cookies sold.

From the given information, we can create a system of equations:

Equation 1: 2x + 1y = 260 (the total amount raised is $260)
Equation 2: x + y = 190 (the total number of items sold is 190)

We can use substitution to solve for one of the variables. Let's solve for y:

y = 190 - x

Now we can substitute y in Equation 1 with 190 - x:

2x + 1(190 - x) = 260

Simplifying this equation, we get:

2x + 190 - x = 260

x + 190 = 260

x = 70

So the sorority sold 70 brownies. We can use Equation 2 to find the number of chocolate chip cookies sold:

y = 190 - x = 190 - 70 = 120

Therefore, the sorority sold 70 brownies and 120 chocolate chip cookies.