What is 18/25 as a decimal

Mathematics

2 answers:

Serga [27]2 years ago

4 0

Answer: 0.72

Step-by-step explanation:

Hope that helps :)

vlada-n [284]2 years ago

3 0

Answer:

0.72

Step-by-step explanation:

18 divided by 25 is 72

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A survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are

luda_lava [24]

Answer:

Step-by-step explanation:

Given that a survey showed that 72% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight

X - number of people who need correction for their eyesight

X is binomial since each event is independent and there are only two outcmes.

X (18, 0.72)

Required probability = the probability that no more than 1 of them need correction for their eyesight.

=P(X=0)+P(X=1)=0.00000296+0.000137

=0.00014

Yes 1 is a significantly low number as probability is almost zero.

5 0

3 years ago

Compute the permutation.

Anon25 [30]

So you have 8 digits (number available) to form 3 digit numbers (number selected).

Using the formula $^{a} P_{c}$ where a is the number of available digits, P is the permutation function and c is the number of digits to be selected.

The number of three digit numbers that can be formed = $^{8} P_{3}$
= 336

 O R

By using the formula $Permutation = \frac{a ! }{( a - c) !}$ where a is the number of available digits and c is the number of digits to be selected.

⇒ $Permutation = \frac{8 ! }{( 8 - 3) !}$

⇒ $Permutation = \frac{40, 320 }{120}$

⇒ Permutation = 336

8 0

2 years ago

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D%20%20%2B%20%20%5Cfrac%7B7%7D%7B15%7D%20" id="TexFormula1" title=" \fr

luda_lava [24]

Answer:

Step-by-step explanation:

$\frac{5}{15} + \frac{7}{15y} = \frac{12}{15} = \frac{4}{5}$