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ASHA 777 [7]
3 years ago
5

Please show your work:

Mathematics
1 answer:
Shalnov [3]3 years ago
6 0

Answer:

b . 4/5

60 :15 minute : 4

3 /15 x 4 = 12/15 = 4/5

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What is the answer to 8(3.5x−2)≥40
sammy [17]

Answer:

<em>x ≥ 2</em>

Step-by-step explanation:

Distribute 8:

8 (3.5x - 2) ≥ 40

28x - 16 ≥ 40

Add 16:

28x ≥ 40 + 16

28x ≥ 56

Divide by 28:

x ≥ 56 ÷ 28

x ≥ 2

8 0
3 years ago
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PLZ HELP ILL GIVE YOU THE BRAINLIEST IF RIGHT‼️ <br> I need the simplified answer :)
yanalaym [24]
Just multiple, you will get 15x+25x+6x+10 and then simplify
the answer 46x+10
3 0
3 years ago
There are 3 different highways from City W to
devlian [24]

Answer:

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Step-by-step explanation:

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3 years ago
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The distribution of the amount of money in savings accounts for Florida State students has an average of 1,200 dollars and a sta
Anestetic [448]

Answer:

By the Central Limit Theorem, the sampling distribution of the sample mean amount of money in a savings account is approximately normal with mean of 1,200 dollars and standard deviation of 284.6 dollars.

Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes 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.

Average of 1,200 dollars and a standard deviation of 900 dollars.

This means that \mu = 1200, \sigma = 900

Sample of 10.

This means that n = 10, s = \frac{900}{\sqrt{10}} = 284.6

The sampling distribution of the sample mean amount of money in a savings account is

By the Central Limit Theorem, approximately normal with mean of 1,200 dollars and standard deviation of 284.6 dollars.

7 0
3 years ago
The sum of two numbers is -14 one number is 20 less than the other find the numbers
Lisa [10]

Answer:

x=-17,y=3

Step-by-step explanation:

x+y=-14

x=x

y=x+20

x+(x+20)=-14

2x+20=-14

2x=-14-20

2x=-34

x=-34/2

x=-17

y=-17+20

y=3

3 0
3 years ago
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