3 years ago

Which expression is equivalent to 1/2(2n + 6)?

Mathematics

1 answer:

larisa [96]3 years ago

3 0

Answer:

n+3

Step-by-step explanation:

hello :

1/2(2n + 6) = (1/2)(2n) +(1/2)(6)

the expression is equivalent to 1/2(2n + 6) is n+3

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I forgot how to find the value of x on a triangular prism

konstantin123 [22]

You would have to multiply then divide then subtract.

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3 years ago

Jayne says that 0.45 is equal to 4/10 is she correct? Explain

MissTica

No, it is not correct.

To compare this answer, do this.

$\frac{45}{100}$ is Jayne's 0.45 in fraction form.

If you simplify it you get $\frac{7}{20}$

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3 years ago

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What is the answer to 3/5(10x-1/3)-x+6/5

seraphim [82]

Answer:

5x + 1

Step-by-step explanation:

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3 years ago

it cost $3.45 to buy 3/4 lb of chopped walnuts how much would it cost to purchase 7.2 lb of walnuts

andreev551 [17]

Answer:

Step-by-step explanation:

$33.12

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5 0

3 years ago

recent survey found that 71% of all adults over 50 wear glasses for driving. In a random sample of 30 adults over 50, what is

valentina_108 [34]

Answer:

Mean = 21.3

Standard Deviation = 2.48

Step-by-step explanation:

We are given the following in the question:

p = 71% = 0.71

Sample size, n = 30

We have to find the mean and the standard deviation of those that wear glasses.

$\text{Mean} = np\\=30(0.71)\\=21.3$

Thus, the mean of those who wear glasses is 21.3

$\text{Standard deviation} = \sqrt{npq}\\=\sqrt{np(1-p)}\\=\sqrt{30\times 0.71\times (1-0.71)}\\=2.48$

Thus, the standard deviation of those who wear glasses is 2.48

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3 years ago