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3 years ago

Help help help help help help help help me me me me me me me me me me me me me

Mathematics

2 answers:

kkurt [141]3 years ago

6 0

1) 10%
2) 20%
3) 90%
4) 80%
5) 85%
6) 33.33% (.33 repeats)

GenaCL600 [577]3 years ago

4 0

1/10=10% 1/5=20% 9/10=90% 4/5=80% 17/20=85% 1/3=33.33%

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franklin is thinking of two numbers. the sum of the two numbers is 40.the first number x, is 11 less than twice the second numbe

vampirchik [111]

Answer: d) x+y =40

x=2y -11

Step-by-step explanation:

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2 years ago

What to do ??<br> i need help please <br> asap <br> one question left

maks197457 [2]

Answer: $(x^{\frac{2}{7}})(x^{\frac{3}{5}})$

Step-by-step explanation:

If you took the nth root of x, it is the same as raising x to the power of 1/n. Therefore:

$\sqrt[7]{x^{2} } = (x^{2} )^{1/7} = (x^{\frac{2}{7}})\\\sqrt[5]{x^{3} } = (x^{3} )^{1/5} = (x^{\frac{3}{5}})$

And multiply:

$(x^{\frac{2}{7}})(x^{\frac{3}{5}})$

3 0

3 years ago

Can y’all help me with these plz

nalin [4]

Answer:

1) 160 (less than or equal to) 42+65+x OR 53

2) 2000 (greater than or equal to) 637+x OR $1363

3) 1st piece: 5ft

2nd piece: 10ft

3rd piece: 6ft

Step-by-step explanation:

1) You must reach at least 160 blankets. Some have already been added, so just add the total to "x"

2) Your brother already spent $637 of 2000 dollars.

3 0

3 years ago

The number 16 is decreased to 7. What is the percentage by which the number was

kogti [31]

Answer:

56.3%

Step-by-step explanation:

56.3%

6 0

1 year ago

Read 2 more answers

The national weather service keeps records of rainfall in valleys. Records indicate that in a certain valley the annual rainfall

Setler79 [48]

Answer:

The mean is 95 and the standard deviation is 2

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean $\mu$ and standard deviation $\sigma$ , the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean $\mu$ and standard deviation $s = \frac{\sigma}{\sqrt{n}}$ .

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this question:

Population:

Mean 95, Standard deviation 12

Samples of size 36:

By the Central Limit Theorem,

Mean 95

Standard deviation $s = \frac{12}{\sqrt{36}} = 2$

4 0

2 years ago