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3 years ago

3. Find two numbers whose product is -6 and whose sum is 1.

Mathematics

2 answers:

Anestetic [448]3 years ago

5 0

Answer:

-2, 3

Step-by-step explanation:

yeah that's it I don't have any explanation or formula

Naddika [18.5K]3 years ago

3 0

let the numbers be x and y

xy = -6

x + y = 1

from x + y = 1

y = 1 - x

x(1 - x) = -6

x - x² + 6 = 0

-x² + x + 6 = 0

on solving,

x = -2 or x = 3

y = 1 - (-2) = 3

y = 1 - 3 = -2

x1 = -2, y1 = 3.

x2 = 3, y2 = -2.

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<em /><em>PURPLE MARBLES=P
WHITE MARBLES=W

</em>First, write out an equation showing the number of purple marbles.
P=5W-6
Then, write out the main equation.
W+P=96
W+5W-6=96
Add 6 to both sides.
W+5W=102
6W=102
Divide both sides by 6
W=17
Now that we know there are 17 white marbles, we can go back to the equation about how many purple marbles there are.
P=5W-6
Plug in the value for W, which is 17.
P=5(17)-6
P=85-6
P=79

To make sure your answer is correct, check your work by plugging in the values for P+W=96.
79+17=96
Answer: There are 79 purple marbles.

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3 years ago

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Answer:

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Answer: Option D

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Step-by-step explanation:

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In this case:

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3 years ago

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