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3 years ago

I need help on this page

Mathematics

1 answer:

Aloiza [94]3 years ago

4 0

Because it is a question asking for ppl playing either soccer OR basketball, we add the two fractions together. Thus, Part A becomes 3/10 + 4/10, which is 7/10 (since the denominators are the same, you only add the numerators).

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A hiker carried 1 gallon of water on a hike. She drank 1/2 of the water when she stopped to rest and gave an equal amount of the

m_a_m_a [10]

Answer:

The answer to your question is 1/8

Step-by-step explanation:

Data

Total volume = 1 gallon

Water drank by the hiker = 1/2

Water drank by each of his friends = ?

Process

1.- Calculate the water that he gave to his friends

Water gave to his friends = 1 - 1/2

= 1/2

2.- Calculate the amount of water each friend received.

1/2 ÷ 4 = 1/8

3.- Conclusion

Each of the friends received 1/8 of the gallon.

6 0

3 years ago

Find a single expression that represents the distance from Adam's house to the corner if the distance between Adam's house and J

kvasek [131]

Just subtract the distance between the corner and jims house from 23x - 2 and you'll get your answer. I just got the correct answer.

7 0

3 years ago

R + 3 1/2 = -4 2/3

alexandr402 [8]

Answer:

R = -8 1/6

Step-by-step explanation:

We'll solve the given equation for R.

Subtract 3 1/2 from both sides of the equation, to isolate R:

R + 3 1/2 - 3 1/2 = -4 2/3 - 3 1/2, or

R = -4 2/3 - 3 1/2

The LCD here is 6, which is the product of 3 and 2. Converting the fractions to denominator 6, we get:

R = -4 4/6 - 3 3/6, or

R = -7 - 7/6, or R = -7 - 1 1/6, or -8 1/6

3 0

3 years ago

Identify a number that results in a 4-digit-number when 156,350 is subtracted from it

jekas [21]

160,000 - 156,350 =3,650

7 0

3 years ago

Suppose 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea. Use a 0.05 significance

lana66690 [7]

Answer:

Null Hypothesis, $H_0$ : p = 0.20

Alternate Hypothesis, $H_a$ : p > 0.20

Step-by-step explanation:

We are given that 241 subjects are treated with a drug that is used to treat pain and 54 of them developed nausea.

We have to use a 0.05 significance level to test the claim that more than 20% of users develop nausea.

Let p = population proportion of users who develop nausea

So, Null Hypothesis, $H_0$ : p = 0.20

Alternate Hypothesis, $H_a$ : p > 0.20

Here, null hypothesis states that 20% of users develop nausea.

And alternate hypothesis states that more than 20% of users develop nausea.

The test statistics that would be used here is One-sample z proportion test statistics.

T.S. = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, $\hat p$ = proportion of users who develop nausea in a sample of 241 subjects = $\frac{54}{241}$

n = sample of subjects = 241

So, the above hypothesis would be appropriate to conduct the test.

6 0

3 years ago