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lora16 [44]
2 years ago
5

One number is -3 times the first number. The sum of the numbers is -4. What is the second number?

Mathematics
1 answer:
kobusy [5.1K]2 years ago
6 0
Lets say that the first number is x and the second number is y.
from the question we know that:
y=-3x and x+y=-4
from there, you need to replace the y in the second equation with -3x since we know that is what y equals so we can have an equation with only one variable.
x+-3x+-4
Then you solve for x.
-2x=-4
x=2
then you find y with the fact that y=-3x
y=-6
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Quadratics formula 4x^2+3x-1=0
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Answer: X = 1/4 or X = -1

Step-by-step explanation:

4x2+3x−1=0

(4x−1)(x+1)=0

4x−1=0 or x+1=0

4x=1 or x=-1

Now divide 4 from both sides

like this 4x/4=1/4

now cancel out two 4's so the answer will be x=1/4

3 0
3 years ago
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Answer:

EASY. x=-3

Step-by-step explanation:

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Hope this helped!!

8 0
3 years ago
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3 0
2 years ago
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TEA [102]

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<h2>15</h2>

Step-by-step explanation:

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The lines l and m are parallel, therefore ∠6 and ∠7 are congruent.

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