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andreev551 [17]
3 years ago
11

The sum of two numbers is 62, and their difference is 8. What are the numbers?

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer:  35 and 27

Step-by-step explanation:

We can solve this by using a system of equations

x will be the first number while y will be the second

x+y=62

This equation means the two numbers will add to get 62

x-y=8

This equation means when subtracted the two numbers will have the difference of 8.

Now I will solve by elimination

x+y=62\\\\+x-y=8\\2x=70

When adding the two equations why was eliminated so now we can find the value of x

2x=70\\\frac{2x}{2} =\frac{70}{2} \\x=35

Now sub in x into one of the original equations to find the value of y

35+y=62\\35-35+y=62-35\\y=27

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IRINA_888 [86]

Answer:

There are no real solutions.

Step-by-step explanation:

There are 3 options.

2 real solutions: This happens if in the graph, each arm intersects the x-axis, this means that there are two different values of x such that the equation:

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Another way to see this, is if the determinant:

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1 real solution: This happens when the vertex of the graph intersects the x-axis. This means that there is a single value of x such that:

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Another way to see this is if the determinant:

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Now that we know this, let's look at the graph.

We can see that the vertex is below the x-axis, and the arms of the graph go downwards. So the arms will never intersect the x-axis (and neither the vertex).

So the graph does not intersect the x-axis at any point, which means that there are no real solutions for the quadratic equation.

The correct answer would be "none"

3 0
3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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