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worty [1.4K]
3 years ago
13

Find the slope and y-intercept of the line x+3y=3...

Mathematics
1 answer:
katovenus [111]3 years ago
4 0
So first put this in slope intercept form, y=mx+b. subtract x from both sides so now you have 3y=-x+3 and to get y by itself divide both sides by 3 so now you have y=(-x/3) +1 or y=-1/3(x)+1 the slope is m and the y-intercept is b so the slope is -1/3 and the y-intercept is 1
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With her promotion, Nicki's salary increased from $19.50 an hour to $22.50 an hour. What is the percent of increase, rounded to
olga nikolaevna [1]
The equation for percentage increase is
{(New value - old value) / old value} x100%
Therefore it should be
{(22.5 - 19.5) / 19.5} x 100%
=15% (rounded to nearest whole number)
Answer is B
5 0
3 years ago
Read 2 more answers
There are 80 members of the show choir. For a fund raiser 95% of the members raised money, how many members did NOT raise money.
Mumz [18]
To find out how many did not raise money, we need to find the percentage that did not raise money and multiply that by the total number of members.

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0.05 x 80 = 4 members did not raise money
7 0
3 years ago
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Gre4nikov [31]
Pet show has stations for each animal.  There are 5 rabbits, 7 cats, 8 dogs, and 4 hamsters.

1.  How many cats need to be added to make the probability 1/2. 

For the probability to be 1/2, we need there to be 1 cat for every 2 animals. There are 5+8+4 = 17 other animals besides cats so we need to increase the amount of cats to 17 so that it is 1/2 of the total.  We already have 7 so we need 17-7 = 10 more cats.

2.  Assume we added the cats.  What's the probability of picking a dog?

Since we added the cats, the total number of animals is now 17+17 = 34

There are 8 dogs, so the probability of picking a dog will be 8/34 which will reduce to 8/34 = 4/17 (you will pick 4 dogs every 17 attempts).

3.  No more animals added.  What is the probability of picking a rabbit or hamster?

Total rabbits and hamsters is 5+4 = 9  so there is a 9/34 chance of picking a rabbit or hamster. (you will pick a rabbit or hamster 9/34 attempts).

4.  What is the probability of NOT picking a goldfish?

Be careful here... the question is what is the probability that you won't pick a goldfish? Well there are no goldfish, so there is a 34/34 (100%) chance that you won't pick a goldfish.  You will NOT pick a goldfish 34 out of 34 times.
7 0
3 years ago
8 times blank equals 48
krek1111 [17]
Answer: 8 times 6 equals 48
3 0
3 years ago
Read 2 more answers
Due to symmetry, the probability that the standard normal random variable Z is less than 0 is equal to ______. Multiple choice q
Butoxors [25]

Answer:

.5

Step-by-step explanation:

The probability that a normal random variable is less than its mean is .5

8 0
2 years ago
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