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Zinaida [17]
3 years ago
10

Lucy took three tests. If her median score was 86, her mean score was 87, and the range was 13, what were her three test scores?

Mathematics
1 answer:
sveticcg [70]3 years ago
3 0
      x+82+y
______________  =87
         3
y-x=17
87,98, and 82.
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Answer: Nobody knows the trouble ive seen

Step-by-step explanation:

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2 years ago
A writer can write 10 pages every 20
dybincka [34]

Answer:

30×

Step-by-step explanation:

if a writer can write 10 pages every 20 mins then that means a writer can write 30 pages every hour. there is 60 mins in every hour so if you do 60 divided by 20 you get three. then you do 10 times three and get thirty.

6 0
3 years ago
WILL GIVE BRAINLIEST!!!!!!!!!
raketka [301]
To evaluate the expression shown:
we begin by evaluating the numerator:
0.6+2.4(3-0.7×5/7)-7÷3 1/2
re-writing in proper fractions we get:
0.6+2.4(3-0.7×5/7)-7÷7/2
working out the parenthesis we get:
0.6+2.4(3-0.5)-7÷7/2
simplifying the above we get:
0.6+2.4(2.5)-7×2/7
=0.6+6-2
=4.6

working out the denominator we obtain:
5 1/4×4-(5.9-2.7÷9/11)×2 1/2
rewriting in proper fraction we get:
21/4×4-(5.9-2.7÷9/11)×5/2
working out the parenthesis:
21/4×4-(5.9-2.7×11/9)×5/2
=21-(5.9-3.3)×5/2
simplifying gives us:
21-(2.6×5/2)
=21-6.5
=14.5
thus putting back the expression we get:
4.6/14.5
=46/145
8 0
3 years ago
Mr. Wallace gave a test to his math classes. He created a histogram that showed the frequency of As, Bs, and Cs. He labeled the
charle [14.2K]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
A box has 16 candies.12 red and 4 yellow.If you were picking candies from the box without looking.How many candies would you hav
jeka57 [31]

We want to get the probability of randomly picking two candles of the same color. We will see that this probability is 0.6

First, the thing that we know is that there are 16 candles, 12 red and 4 yellow.

The probability of getting a red candle in the first pick is given by the quotient between the number of red candles and the total number of candles:

  • p = 12/16 = 3/4

The probability of getting another red candle is computed in the same way, but now there are 11 red candles and 15 candles in total:

  • q = 11/15

The joint probability is given by the product of the two individual probabilities:

P = p*q = (3/4)*(11/15) = 33/60 = 0.55

Now we must do the same thing but with the yellow candles, the probability of getting a yellow candle in the first draw is:

  • p = 4/16 = 1/4

For the second candle we have:

  • q = 3/15 = 1/5

The joint probability is:

P' = p*q = (1/4)*(1/5) = 1/20 = 0.05

Then the probability of getting two candles of the same color is the sum of the two above:

P'' = 0.55 + 0.05 = 0.6

If you want to learn more about probabilities, you can read:

brainly.com/question/251701

5 0
2 years ago
Read 2 more answers
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