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3 years ago

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i really need help with this oneeeee.Mickey went to the mall to buy new sneakers. the store was having a 60% off sale. Mickey pa

id $72 after the discount was taken off the price of the sneakers. What was the original price of the sneakers?

1 answer:

Ray Of Light [21]3 years ago

3 0

Answer:

180

Step-by-step explanation:

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Yall please help meee

Lady_Fox [76]

Answer:

<u>12n + 2</u>

Step-by-step explanation:

$w(n) = un + 2$

$w(3n) = 4(3n) + 2$

$ans = 12n + 2$

hope it helps you

have a great day!!

6 0

2 years ago

What is the solution if any, to the inequality 3-l4-nl>1?

atroni [7]

Answer:

The solution to the inequality is all real values of n that respect the following condition: 2 < n < 6

Step-by-step explanation:

First, we need to separate the modulus from the rest of equation. So

3-l4-nl>1

-|4-n|>1-3

-|4-n|>-2

Multiplying everything by -1.

|4-n|<2

How to solve:

|x| < a means that -a<x<a

In this question:

|4-n|<2

-2<4-n<2

This means that:

4 - n > -2

-n > -6

Multiplying by -1

n < 6

And

4 - n < 2

-n < -2

Multiplying by 1

n > 2

Intersection:

Between n > 2 and n < 6 is 2 < n < 6

So the solution to the inequality is all real values of n that respect the following condition: 2 < n < 6

8 0

2 years ago

Suppose you have already been waiting for one hour for a taxi. what is the probability that one arrives within the next 10 minut

Alona [7]

The probability of one arrives within the next 10 minutes when he already been waiting for one jour for a taxi is,

P (X > 70 | X > 60) = P (X > 10) = 1 – P (X ≤ 10) = 1 – {1 – e ^ -((1 / 10) 10)} = e ^ -1

= 0.3679

The probability of one arrives within the next 10 minutes when he already been waiting for one hour for a taxi is 0.3679

3 0

3 years ago

Solve the inequality : 8<=2/3(3y-6)

nydimaria [60]

Answer:

I'm assuming you meant $8\leq \frac{2}{3} (3y-6)$ , if so the answer is $\:y\ge \:6\:$

Step-by-step explanation:

hope this helps :)

5 0

3 years ago

Read 2 more answers

48. Reading Rates The reading speed of sixth-grade students is approximately normal, with a mean speed of 125 words per minute a

son4ous [18]

Answer:

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 125, \sigma = 24$

What is the reading speed of a sixth-grader whose reading speed is at the 90th percentile

This is the value of X when Z has a pvalue of 0.9. So it is X when Z = 1.28.

$Z = \frac{X - \mu}{\sigma}$

$1.28 = \frac{X - 125}{24}$

$X - 125 = 1.28*24$

$X = 155.72$

The reading speed of a sixth-grader whose reading speed is at the 90th percentile is 155.72 words per minute.

4 0

3 years ago

Read 2 more answers