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Nataly [62]
3 years ago
5

I need help someone explain?????

Mathematics
1 answer:
Hunter-Best [27]3 years ago
5 0
In 9, the error is that the 276 should be the numerator, not the denominator, because in the proportion Elisa made, the number of students is the numerator and the number of teachers is the denominator. 

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Does 2 1/4-6/7=1 3/4
dimulka [17.4K]

Answer: No, it would be 2/5.


Step-by-step explanation: 2 1/4 - 6/7 is equal to about 1.4 when rounded to the nearest tenth. 1.4 as a fraction would be 4/10. 4/10 is simplified to 2/5 by dividing each number by 2.


7 0
3 years ago
A coin is to be spun 25 times. Let x be the number of spins that result in heads (H). Consider the following rule for deciding w
larisa [96]

Answer:

0.0433

Step-by-step explanation:

Since we have a fixed number of trials (N = 25) and the probability of getting heads is always p = 0.05, we are going to treat this as a binomial distribution.

Using a binomial probability calculator, we find that the probability of obtaining heads from 8 to 17 times is 0.9567 given that the con is fair. The probability of obtaining any other value given that the coin is fair is going to be:

1 - 0.9567 = 0.0433

Since we are going to conclude that the coin is baised if either x<8 or x>17, the probability of judging the coin to be baised when it is actually fair is 4.33%

5 0
3 years ago
Identify the transformation that was applied to this boomerang
Marrrta [24]

Answer:

c- translation

Step-by-step explanation:

it just moved a few points down

8 0
3 years ago
if 42 percent of all people working in the United States are baby boomers, how many were working in 2016? if 15 percent of the b
natka813 [3]

Answer:

https://www.pewresearch.org/fact-tank/2019/07/24/baby-boomers-us-labor-force/

Step-by-step explanation:

here is an article about this.

8 0
2 years ago
What is 6 1/4 written as a decimal?<br><br> A. 6.5<br><br> B. 6.2<br><br> C. 6.25<br><br> D. 6.025
GaryK [48]

Answer:

C. 6.25

Step-by-step explanation:

6 is a whole number while 1/4 is translated into .25 as a decimal

8 0
2 years ago
Read 2 more answers
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