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Alona [7]
3 years ago
7

An oil company fills 1 over 10 of a tank in 1 over 5 hour. At this rate, which expression can be used to determine how long it w

ill take for the tank to fill completely?
A. 1 over 5 ⋅ 10 hours
B. 1 over 10 ⋅ 5 hours
C. 1 over 5 ⋅ 1 over 10 hour
D. 5 ⋅ 10 hours
Mathematics
2 answers:
sergeinik [125]3 years ago
8 0
Hey there, Natethegreat13!

The correct answer should be A
If it takes \frac{1}{5} hours (which is 24 minutes) to fill one tenth of the tank, then to fill 10 tanks, it would be \frac{1}{5} * 10 and you get a total of 2 hours to fill the tank.

Thank you for using Brainly.
See you soon!
Paladinen [302]3 years ago
7 0

If 1/10 of the tank is filled in 1/5 of an hour, then multiplying both of those by 5 you would get 5/10 of a tank being filled in a full hour, or answer choice A. Hope this helps! By the way, sorry for the incorrect answer a couple years ago :)

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Find the exact value of cos(arcsin(one fourth)). For full credit, explain your reasoning.
photoshop1234 [79]
We are asked to give the exact value of <span>cos(arcsin(one fourth)). In this case, we shift first the setting to degrees since this involves angles. we determine first arc sin of one fourth equal to 14.48 degrees. then we take the cos of 14.48 degrees equal to 0.9682. Answer is 0.9682.</span>
5 0
3 years ago
I need help can anyone help me please??
Lisa [10]

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8 0
3 years ago
involving the selection of two apples from a bag of red and yellow apples without replacement. Assume that the bag has a total o
ivolga24 [154]

Answer:

1) The probability that the second apple is red is 0.7143 (71.43%).

2) The probability that at least one red apple is picked 0.9341 (93.41%).

Step-by-step explanation:

We can make a probability tree as the attached picture.

1) There are 2 ways in the probability tree when the second apple is red:

Both apples are red:

P(R∩R)=\frac{10}{14}\frac{9}{13}=0.4945

Only the second apple is red:

P(Y∩R)=\frac{4}{14}\frac{10}{13}=0.2198

The probability that the second apple is red is the sum of the previous probabilities.

P(2nd R)=P(R∩R)+P(Y∩R)=0.4945+0.2198=0.7143

2) To find the probability that at least one apple is red, we can get the probability of none of the apples is red and then it will be subtracted from 1.

The way in the probability tree is Y∩Y:

P(Y∩Y)=\frac{4}{14} \frac{3}{13}=0.0659

P(at least 1 R)= 1-P(Y∩Y)=1-0.0659=0.9341

8 0
3 years ago
Read 2 more answers
58 is 20% of<br>having trouble
ella [17]
First, let's introduce a variable:

Let n represent the number we are trying to find.

20 % x n = 58
0.20 x n  = 58
      0.20n = 58
             n = 290
           
Therefore, 58 is 20% of 290.

Hope this helps!
Message me if you have any questions. :)
6 0
2 years ago
I can't seem to solve this problem. I have to make an equation to solve this but i don't know how to make an equation for this p
soldier1979 [14.2K]

Well each ladder has 30, and then it depends on how each person climbs their ladder. One climb at the rate of -2 per second. The other climb at the rate of 1 per second. Just x is equal to 1, that's why I didnt put 1x.
Equation: 30 + -2x = 30 + x
7 0
3 years ago
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