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a product of a number and -2 increased by 8 is -4. what is the number?
a product of a number and -2 increased by 8 is -4. what is the number?
10/14/2014 | Alvin from Plano, TX | 1 Answer | 0 Votes
Geometry
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1 ANSWER
Nathan B.
Sacramento, CA
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A product means multiplication, so...
(x * -2) +8 = -4
-2x + 8 = -4
To isolate the x, we have a couple of different ways, but the easier for now would be to start off by moving the 8 to the other side via subtracting both sides by 8:
-2x + 8 - 8 = -4 - 8
-2x = -12
Next, we divide both sides by -2
-2x / -2 = -12 / -2
x = 6
Answer:
Your Winnings are $ -1
Step-by-step explanation:
Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.
Since we are not told what two balls were actually drawn, then the expected winnings would be of the greatest probability occurring. To figure this out we need to calculate the probability of getting two red balls consecutively and the probability of getting two different colors consecutively. Since there are a total of 10 balls the probabilities of getting one ball would be the following,
Red: 
Green: 
Now we need to know the probability of us getting 2 reds together, two greens, or one of each.
2 Reds: 
2 Greens: 
1 Each: 
So we can see that the highest probability is getting 2 Greens in a row. Meaning you would have to pay $1
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
Answer:
(Part A) I know the mean of x will be 1.35
Step-by-step explanation:
Just do 9 percent of 15, I nessecarly dont know how to do that math but I looked it up and gave me 1.35. and you got the mean. here is the homework my teacher gave me : I hope this helps