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Nady [450]
3 years ago
14

Todd caught at least three times as many fish this year as he did last year. He caught 63 fish this year. Write an inequality th

at represents how many fish he caught last year.
Mathematics
1 answer:
fiasKO [112]3 years ago
4 0

Answer:

21

Step-by-step explanation:

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There are 640 apples in the box if 20% of apples are found to be rotten . How many are good apples ?​
Whitepunk [10]
640x.2=128
640-128=512
6 0
3 years ago
9 dollars for 3 cans of tuna *
Klio2033 [76]

Answer:

3 dollars for each can of tuna

Step-by-step explanation:

9-3=6

6-3=3

3-3=0

3 0
3 years ago
Read 2 more answers
Suppose that in a random selection of 100 colored​ candies, 26​% of them are blue. The candy company claims that the percentage
quester [9]

Answer:  a) -0.2252, b) 0.8219

Step-by-step explanation:

Since we have given that

Sample size n = 100

Probability that candies are blue = p= 0.26

Probability that company claims that it is blue candy = P = 0.27

So, Q = 1-P= 1-0.27 = 0.73

So, Null hypothesis : H_0:p=P

Alternate hypothesis : H_1:p\neq P

So, the test statistic would be

z=\dfrac{p-P}{\sqrt{\dfrac{P.Q}{n}}}\\\\z=\dfrac{0.26-0.27}{\sqrt{\dfrac{0.27\times 0.73}{100}}}\\\\z=-0.2252

Since α = 0.05

So, critical value of z = 1.96

p-value = P(Z>Z(calculated)

Using the excel function , we get that

P(z>0.2252)\\\\=2\times 0.410.911845\\\\=0.8219

Hence, a) -0.2252, b) 0.8219

6 0
3 years ago
Your medical research team is investigating the standard deviation of the cost of a 30-day-supply of a certain heart medication.
Valentin [98]

Considering the situation described, the hypothesis tested are given as follows:

  • The null hypothesis is H_0: \sigma \geq 23
  • The alternative hypothesis is H_1: \sigma < 23

<h3>What are the hypothesis tested?</h3>

At the null hypothesis, it is tested if the standard deviation is not less than $23, that is:

H_0: \sigma \geq 23

At the alternative hypothesis, it is tested if there is significant evidence t conclude that the standard deviation is less than $23, that is:

H_1: \sigma < 23

More can be learned about an hypothesis test at brainly.com/question/26454209

4 0
2 years ago
What soulution is true for x/3=1/4
andreyandreev [35.5K]

Answer:

x=3/4

Step-by-step explanation:

x/3=1/2^2

4x=3

4x/4=3/4

x=3/4

8 0
3 years ago
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