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storchak [24]
2 years ago
6

How many 1/8s are in 9 3/4 Pleaseeee help meee

Mathematics
1 answer:
Gnom [1K]2 years ago
8 0

Answer:

78

Step-by-step explanation:

First we want 9 3/4 into an improper fraction.

(9 * 4) + 3 / 4 = 39 / 4

Then we want to change 39 / 4 into the same denominator as 1/8

39 / 4 * 2 = 78 / 8

And there is your answer, 78!

(hopefully this is correct, have a nice day!)

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The probability that an individual is left-handed is 0.12. in a class of 39 students, what is the probability of finding five le
Snezhnost [94]

We are given:

p = probability = 0.12<span>
n = total students = 39 </span>

x = left handers = 5<span>
u = mean = p* n = 4.68 
σ = standard dev = √ ( n*p*(1-p)) = √ ( 39 * 0.12 * 0.88 ) = 2.03</span>

 

Calculating for the z score:

z = (x – u) / σ<span>
z = (5 – 4.68) / 2.03</span>

<span>z = 0.1576 = 0.16

</span>

Using the standard tables for z, the p value is:

p value = 0.5636 = 56.36%

 

Hence there is a 56.36% chance.

<span> </span>

8 0
3 years ago
Read 2 more answers
Tom knows that in his school 10out of every 85 students are lefthanded. There are 391 students in Toms school. How many studentd
Rudiy27
To do this, first divide 85 by 10

You get 8.5

Then, divide 391 by 8.5

You get 46

Therefore, 46 students are left-handed in Tom's school.

Hope this helped!
8 0
3 years ago
Ralph Chase plans to sell a piece of property for ​$160,000. He wants the money to be paid off in two ways monica ​short-term no
DerKrebs [107]

Answer:

  • short-term: $90,000
  • long-term: $70,000

Step-by-step explanation:

Let x represent the amount borrowed on the short term. Then 160000-x is the amount of the long-term note. The total interest is ...

  0.11x +0.08(160000-x) = 15500

  0.03x + 12800 = 15500 . . . . simplify

  0.03x = 2700 . . . . . . . . . subtract 12800

  x = 2700/.03 = 90,000 . . . . short-term note

  160,000 -90,000 = 70,000 . . . . long-term note

The short-term note was for $90,000; the long-term note was for $70,000.

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3 years ago
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2 years ago
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Vedmedyk [2.9K]

Answer:

Given:

1). x^2-8x+16 divided by x-4

⇒ \frac{x^2-8x+16}{x-4}

⇒ \frac{x^2-2\times x\times 4+4^2}{x-4}

By factorising numerator by using identity, (a-b)^2=a^2-2\times a \times b +b^2

⇒ \frac{(x-4)^2}{x-4}

⇒ \frac{(x-4)\times(x-4)}{x-4}

⇒ x-4  <u> {Answer}</u>

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⇒ \frac{3x^2y}{6xy^2}

⇒\frac{3\times x\times x\times y}{6\times x\times y\times y}

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4 0
3 years ago
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