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Licemer1 [7]
3 years ago
11

Mrs. ciampa had 27 students In her class last year and this year she had 30 students in her math class. What is the percent of c

hange?
Mathematics
1 answer:
LiRa [457]3 years ago
5 0

Answer:

10%

Step-by-step explanation:

3 more students this year

3/30 reduced= 1/10 or 10%

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Because tax is an additional charge to the original amount therefor it is simply an increase
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2 years ago
Q26. Meena bought a cake and left it on the table in the morning. When she came home in the evening, she saw that of the cake ha
Gwar [14]

The answer is; 24/75 of the entire cake remained

If 2/5 of the initial cake was eaten, the 3/5 is what remained

MInu ate 1/3 of the 3/5 = 3/15

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Her brother ate; 1/5 of 6/15 = 6/75

6/15 – 6/75 = 24/75 remained




4 0
2 years ago
A binomial probability experiment is conducted with the given parameters. Compute the probability of x successes in the n indepe
Naddik [55]

Answer:

P (X ≤ 4)

Step-by-step explanation:

The binomial probability formula can be used to find the probability of a binomial experiment for a specific number of successes.  It <em>does not</em> find the probability for a <em>range</em> of successes, as in this case.

 

The <em>range</em> "x≤4" means x = 0 <em>or</em> x = 1 <em>or </em>x = 2 <em>or</em> x = 3 <em>or</em> x = 4, so there are five different probability calculations to do.

 

To to find the total probability, we use the addition rule that states that the probabilities of different events can be added to find the probability for the entire set of events only if the events are <em>Mutually Exclusive</em>. The outcomes of a binomial experiment are mutually exclusive for any value of x between zero and n, as long as n and p don't change, so we're allowed to add the five calculated probabilities together to find the total probability.

 

The probability that x ≤ 4 can be written as P (X ≤ 4) or as P (X = 0 or X = 1 or X = 2 or X = 3 or X = 4) which means (because of the addition rule) that P(x ≤ 4) = P(x = 0) + P(x = 1) + P (x = 2) + P (x = 3) + P (x = 4)

Therefore, the probability of x<4 successes is P (X ≤ 4)

3 0
3 years ago
CAN YALL HELP PLZZzz
yulyashka [42]
The answer would be the third one .
Perpendicular would always be the opposite of your original slope.
Hope this helps! (:
6 0
3 years ago
Read 2 more answers
I need help on this parallelograms math problem.
Andrews [41]

w=37

2w+w+69= 180 knowing that all triangles add up to 180 form an equation

3w+69=180 combine like terms and subtract 69 from both sides

3w=111 divide by 3 from both sides

w=37

5 0
3 years ago
Read 2 more answers
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