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3 years ago

11

4 equivalent fraction of 9x-7x

1 answer:

Alenkinab [10]3 years ago

3 0

n,9X-7x is the answer

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Anyone do K12 International Private Academy? I was wondering if u could share your honest thoughts and opinions on it :)

kiruha [24]

I do K12 7th grade and it has really brought my grades up! One thing I have noticed though is the work is more advanced then the work at a normal school. At first I had alot of trouble getting used to the system but after awhile it's very simple. I really like K12 because it let's you learn at your own pace. if you have any questions about K12 I would be happy to answer.

4 0

3 years ago

What does the * mean?

disa [49]

It means multiply if your looking in a math problem

6 0

4 years ago

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Maya has 5/6 cup of ice cream. How many 1/4-cup servings are in 5/6 cup of ice cream?

Alla [95]

Answer:

3 and 1 over 3.

Step-by-step explanation:

We divide 5/6 by 1/4.

5 /6 / 1/4

= 5/6 * 4

= 20/6

= 3 2/6

= 3 1/3.

8 0

3 years ago

Read 2 more answers

The lengths of nails produced in a factory are normally distributed with a mean of 3.34 centimeters and a standard deviation of

Shtirlitz [24]

Answer:

3.47 and 3.21

Step-by-step explanation:

Let us assume the nails length be X

$X \sim N(3.34,0.07^2)$

Value let separated the top 3% is T and for bottom it would be B

$P(X < T)= 0.97$

Now converting, we get

$P(Z < \frac{T-3.34}{0.07})= 0.97$

Based on the normal standard tables, we get

$P(Z < 1.881)= 0.97$

Now compare these two above equations

$\frac{T-3.34}{0.07} = 1.881 \\\\ T = 1.881 \times 0.07 + 3.34 \\\\ = 3.47$

So for top 3% it is 3.47

Now for bottom we applied the same method as shown above

$P(Z < \frac{B-3.34}{0.07})= 0.03$

Based on the normal standard tables, we get

$P(Z < -1.881)= 0.03$

Now compare these two above equations

$\frac{B-3.34}{0.07} = -1.881$

$= -1.881 \times 0.07 + 3.34 \\\\ = 3.21$

hence, for bottom it would be 3.21

7 0

3 years ago

Write an equivalent for 2(x - 3) + 5

fgiga [73]

Answer:

2x-1 is an equivalent answer.

7 0

2 years ago

Read 2 more answers