CUA 4 Test Corrections

Front

What is the cost of each hot dog and soda sold at the concession stand?

Back

Each hot dog costs $1.50 and each soda costs $0.50.

Front

If the total revenue from selling hot dogs and sodas is $78.50, what equation can be set up to represent this situation?

Back

Let h be the number of hot dogs and s be the number of sodas sold. The equation is: 1.50h + 0.50s = 78.50.

Front

What is the total number of hot dogs and sodas sold at the concession stand?

Back

A total of 87 hot dogs and sodas were sold combined.

Front

How can you determine the number of hot dogs and sodas sold from the total revenue and total quantity sold?

Back

You can set up a system of equations based on the total revenue and total quantity sold.

Front

What does it mean if a system of equations has no solution?

Back

It means that the equations represent parallel lines that never intersect.

Front

What is the graphical representation of a system of equations with no solution?

Back

The graph consists of parallel lines.

Front

What is the solution to the system of equations: 2x + 3y = 6 and 4x + 6y = 12?

Back

No solution, as the second equation is a multiple of the first.

Front

What is the solution to the system of equations: x + y = 3 and x - y = 1?

Back

The solution is (2, 1).

Front

How do you find the y-coordinate in a system of linear equations?

Back

You can substitute the x-value into one of the equations and solve for y.

Front

What is the value of y in the system of equations: 6x + 10y = -32 and 6x + 9y = -27?

Back

y = -5.