3 years ago

Help me there’s a time limit on this

Mathematics

2 answers:

NikAS [45]3 years ago

7 0

11 hours bc 5 times 11 equals 55

xxMikexx [17]3 years ago

4 0

Answer:

is ll hrs is the answer hurry

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Rachel has taken 6 tests so far and has received scores of 83%, 92%, 79%, 88%, 89%, and 95%. What must Rachel receive on her sev

Vinil7 [7]

Let the score on her seventh test be "x".

SO,

$\frac{83+92+79+88+89+95+x}{7} =90\\\\ \frac{526+x}{7}=90\\\\ 526+x=630\\\\x=630-526\\\\ \boxed{x=104}$

∴ He must get 104% on his seventh test to get an average score of 90%

5 0

3 years ago

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An experiment consist of rolling Two fair number cubes. find the probability of each event.

slega [8]

Probability = (number of possible successes) / (number of total possibilities).

Number of total possibilities:
Each cube can come up in 6 different ways.
Total number of possibilities = 6 x 6 = 36

Possible successes:
There are 2 different ways to roll a 3 . . .

1 . . . 2
or
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The probability is 3/36 = 1/12 = 0.0833... = (8 and 1/3) percent

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3 years ago

If p=3(2q+r), express q in terms of p and r.

Kruka [31]

Answer:

$q=\frac{1}{6}p- \frac{1}{2}r$