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Ymorist [56]
3 years ago
8

Simplify 7 2/3 divided by 6 1/4

Mathematics
2 answers:
mezya [45]3 years ago
7 0

Answer:

1 17/15

Step-by-step explanation:

umka21 [38]3 years ago
3 0
Wait I’m confused. Could you send a photo of the equation?
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The answer is B. I have this question before when i was in 3rd grade once. u must be in k12
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Helpppp!!!!! What is the reason for line 2?
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The sum of 2 number is 42 and when you switch the order the difference is 5
Ksivusya [100]
So, x + y = 42 and y - x = 5;
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4 0
3 years ago
The heights of 18-year-old men are approximately normally distributed with mean 68 inches and standard deviation 3 inches. What
Nutka1998 [239]

Answer:

The probability that an 18-year-old man selected at random is greater than 65 inches tall is 0.8413.

Step-by-step explanation:

We are given that the heights of 18-year-old men are approximately normally distributed with mean 68 inches and a standard deviation of 3 inches.

Let X = <u><em>heights of 18-year-old men.</em></u>

So, X ~ Normal(\mu=68,\sigma^{2} =3^{2})

The z-score probability distribution for the normal distribution is given by;

                              Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean height = 68 inches

           \sigma = standard deviation = 3 inches

Now, the probability that an 18-year-old man selected at random is greater than 65 inches tall is given by = P(X > 65 inches)

       P(X > 65 inches) = P( \frac{X-\mu}{\sigma} > \frac{65-68}{3} ) = P(Z > -1) = P(Z < 1)

                                                                = <u>0.8413</u>

The above probability is calculated by looking at the value of x = 1 in the z table which has an area of 0.8413.

6 0
3 years ago
A recipe take 90 minutes to make.25% of the time is spent preparing the ingredients.How many minutes are spent preparing
joja [24]
It will take 22.5 min cause 25 divided by 100 wuld be 4 wich then divide 90 with
4 0
3 years ago
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