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2 years ago

() Susan set up a lemonade stand to raise money for a children's hospital. She's selling

Mathematics

1 answer:

murzikaleks [220]2 years ago

4 0

Solving the system of equations, it is found that 120 cups of lemonade and 160 brownies were sold.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

The variables are given as follows:

Variable x: Number of cups of lemonade sold.

Variable y: Number of brownies sold.

In this problem, the system is:

x + y = 280.

2.5x + 1.5y = 540.

From the first equation, y = 280 - x, hence, replacing in the second:

2.5x + 1.5y = 540

2.5x + 1.5(280 - x) = 540

x = 540 - 1.5 x 280

x = 120

y = 280 - x = 280 - 120 = 160.

120 cups of lemonade and 160 brownies were sold.

More can be learned about a system of equations at brainly.com/question/24342899

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3 years ago

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When kicked, the height of the ball is 1 feet. The highest point for the ball's trajectory is 12 feet.

Step-by-step explanation:

We are given that the height is given by $f(x)=-0.11x^2+2.2x+1$ . The distance between the ball to the point where it was kicked is 0 right at the moment the ball was kicked. So, the height of the ball, when it was kicked is f(0) = -0.11*0 + 2.2*0 +1 = 1.

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4 years ago

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