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3 years ago

Please help me with this question.

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

7 0

Answer:

1/4

Step-by-step explanation:

1/5 contain nuts => 4/5 do not contain nuts

(1/5):(4/5)=1/4

Airida [17]3 years ago

4 0

Answer:

1:4

Step-by-step explanation

if the ones with nuts are 1/5 it means that the ones without is 4/5

1/4 is the same as writing 1:4

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The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th

Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

$s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16$

The t-value can be calculated as:

$t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47$

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3 years ago

Lake in East Texas was stocked with 3,000 trout in the year 2000. The number of fish in the lake is modeled by f(x) = 3000 + 100

krok68 [10]

Answer:

Step-by-step explanation:

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3 years ago

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Ratio of sandwiches white bread to brown bread is 10:3. 2/3 white are vegetarian, half brown are vegetarian. What fraction of th

julsineya [31]

<h3>Answer:</h3>

8/13

<h3>Step-by-step explanation:</h3>

Given in the question

Ratio of sandwiches white bread to brown bread is 10 : 3

white bread fraction = 10/13

brown bread fraction = 3/13

It is also provided that

2/3 white are vegetarian

1/2 brown are vegetarian

for white bread vegetables sandwich we will find 2/3 of 10

20/3/13

for brown bread vegetable sandwich we will find 1/2 of 3

3/2/13

adding both

20/3/13 + 3/2/13

8/13 (approximate)

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Product means to multiply. Integers are whole numbers, so the process would be to multiply the numbers.

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Dmitry_Shevchenko [17]

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3 years ago

Please help me with this question.​

Please help me with this question.