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Delicious77 [7]
3 years ago
7

A fair number cube with numbers 1-6 was rolled 500 times. The number 4 was landed on 62 times. If the die was rolled 3,000 times

, how many times would it be expected to land on 4, based on the experiment?
a 10
b 372
c 62
d 500
Mathematics
2 answers:
kkurt [141]3 years ago
8 0
The correct answer is B and I hope y’all have a nice day. :3
sweet [91]3 years ago
4 0

Step-by-step explanation:

62/500 is the proportion of rolling 4 to all the rolls, so we just need to expand the fraction so that the denominator is equal to 3000

3000÷500=6

6*62=372 B

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Lady_Fox [76]

Answer:

Savannah

Step-by-step explanation:

Emery has solved it incorrectly;

x = 100

7 0
3 years ago
In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store.
masya89 [10]

The correct answer is A, as the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

In order to clear out room for new merchandise, James decided to mark down some of the items for sale in his electronics store, and he marked down DVD players by 36%, and he marked down stereo tuners by 22%, if DVD Players cost $ 41.60 after the markdown and stereo tuners cost $ 69.42 after the markdown.

To determine which item's price was reduced by more, and by how many dollars more was it reduced, the following calculation must be performed:

  • 100 - 36 = 64
  • 64 = 41.60
  • 100 = X
  • 100 x 41.60 / 64 = X
  • 4160/64 = X
  • 65 = X
  • 65 - 41.60 = 23.40

  • 100 - 22 = 78
  • 78 = 69.42
  • 100 = X
  • 69.42 x 100/78 = X
  • 6942/78 = X
  • 89 = X
  • 89 - 69.42 = 19.58

Therefore, the DVD player's price was reduced by $ 3.82 more than the stereo tuner's price.

Learn more about maths in brainly.com/question/18629331

4 0
2 years ago
Which expression is NOT equivalent to 3^5?
Westkost [7]

Answer:

APart 1:

A.53 =53

B.3^5/3^-6 =177147

C.(1/4)^3 • (1/4)^2 = 1 /1024

D.(-7)^5/(-7)^7 = 1/49

Step-by-step explanation:

I tried my best for part 2 but i'm pretty sure it's not right. I think 1/1024 and 1/49 has a value between 0 and 1

6 0
3 years ago
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I am Lyosha [343]

Answer:

Step-by-step explanation:

square of 15 + square of x = square of 21

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3 years ago
5. Given: BCDF is a parallelogram; line AB is congruent to line BF
solong [7]
A and E are corresponding angles so A=E
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2 years ago
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