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Svetlanka [38]
2 years ago
13

Oleg and Anya drew these models to help them find the difference of 3/4 and 1/2.

Mathematics
1 answer:
Nikitich [7]2 years ago
3 0

Answer:

C

Step-by-step explanation:

Oleg is correct because the least common denominator of both is 4, so each must have 4 peices

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Carolyn watched two movies with her brother. They watched the first movie from 1:38 p.m. to 2:55 p.m. and the second movie from
Olegator [25]

Answer:

They watched movies for 2 hours and 52 minutes.

7 0
3 years ago
Suppose 40% of all college students have a computer at home and a sample of 64 is taken. What is the probability that more than
Art [367]

Answer:

0.13093

Step-by-step explanation:

Give. That :

Population mean = 40% = 0.4

Sample size (n) = 64

Probability that more than 30 have computer at home

Mean = np = 64 * 0.4 = 25.6

Standard deviation = sqrt(n*p*(1-p)) = 3.919

P(x > 30)

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (30 - 25.6) / 3.919 = 1.1227353

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6 0
2 years ago
What is Gama rays? ‎ ‎​
Arte-miy333 [17]

Answer:

Step-by-step explanation:

penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.

4 0
2 years ago
Read 2 more answers
Three machines operating independently, simultaneously, and at the same constant rate can fill a certain production order in 36
Andrews [41]

Answer:

D

Step-by-step explanation:

Let the total production order be X. The combined rate is thus x/36 orders per hour.

Now, we know that the three machines are working at the same constant rate. This means that individual rate for each of the machines will be x/36 divided by 3 and that gives x/108 per machine.

Now, we are having another machine coming at the same constant rate. This means we are adding an x/108 rate to the preexisting x/36.

The new total rate thus becomes x/108 + x/36 = 4x/108

Now we know that the total new rate is 4x/108. Since the total work doesn’t change and it is still x, the time taken to complete a work of x orders at a rate of 4x/108 order per hour would be x divided by 4x/108 and this is x * 108/4x = 108/4 = 27 hours

7 0
3 years ago
Please show work. Show formulas, etc.
gavmur [86]

Just subtract high to low then put the subtracted number over the first population and divide to get a decimal,then multiply decimal by 100 to get the answer in percent

5 0
3 years ago
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