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I am Lyosha [343]
2 years ago
15

What is 5/7 + 3/7??????

Mathematics
2 answers:
marusya05 [52]2 years ago
7 0
Since the denominators are already alike we can just add the numerators together. 5+3 = 8. So we have 8/7. Since 8/7 is an  incomplete fraction we have to turn it  into a regular fraction.  We do this by dividing 8 and 7. 
So 7 goes into 8 1 time, 1 times 7 is seven, and 8 - 7 = 1. So we get 1 1/7. 
you answer is 1 1/7 
I hope this helps!

vaieri [72.5K]2 years ago
6 0
8/7 as an improper and 1 and 1/7 for proper.
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If a denotes some​ event, what does upper a overbara ​denote? if ​p(a)equals=0.9930.993​, what is the value of ​p(upper a overba
masya89 [10]
P(A) = 0.993 is the probability of event A
    _
P(A) is the probability of not A (note that I am trying to place a bar over A. I hope you can see it, else it is because the editor did not show it as I intended)

Then, use the fact that the probability of A plus the probability not A is equal to 1:
                    _
=> P(A) + P(A) = 1
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=> P(A) = 1 - P(A) = 1 - 0.993 = 0.007

So, the answers are:
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1) P(A) = 0.07
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2) Yes, A is unlikely because its probability is very low.
5 0
3 years ago
An artist has completed 1/14 of a painting in 2 weeks. At what rate is she working?
joja [24]

Answer:

Rate = 0.035 per weeks

Step-by-step explanation:

Given that,

An artist has completed 1/14 of a painting in 2 weeks.

We need to find the rate at which she is working. Let the rate is R. It can be calculated by dividing part that is completed and time.

R=\dfrac{\dfrac{1}{14}}{2}\\\\R=0.035\ \text{per weeks}

Hence, her rate is 0.035 per weeks.

6 0
2 years ago
Can anyone help please
mixer [17]
When You divide numbers it makes the value smaller so subtracting the exponents will make the value with that base smaller
5 0
2 years ago
Read 2 more answers
Sweater regularly priced for $84 is placed on sale for $67.20. What is the percent discount?
creativ13 [48]
<h3>Answer:  20% discount</h3>

Work Shown:

amount saved = 84-67.20 = 16.80 dollars

Divide this over the original larger price to get 16.80/84 = 0.20 = 20%

Note how 20% of 84 = 0.20*84 = 16.80 to help check the answer.

Or we can say 0.80*84 = 67.20 which also helps confirm the answer.

The 0.80 is from the fact that you save 20% but still have to pay the remaining 80%

5 0
2 years ago
5x-7=4<br> ------<br> 7<br><br> где полосочки это дробная черта
otez555 [7]

Answer:

5x-6+7

That's the answer

4 0
2 years ago
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