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3 years ago

Write the number 3.7 as a mixed number let x

1 answer:

4 0

3.7/1 = 3.7

multiply it through to make it a whole number.
x 10

37
_
10

then see how mant times 10 goes into it.
3 times. so 3 is your whole number. 7/10 remains.
that is your fraction.

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Plz help me my maths hw is due in a couple of hrs!!!

Hatshy [7]

The answers are in the picture
Have agreat day

7 0

3 years ago

Four and one-half minus three and five-eighths

Leni [432]

4 1/2-3 5/8=0.875 or 875/1000 or 35/40 or 7/8

4 0

3 years ago

6 high school seniors choose from among 20 quotes for their yearbook. What is the probability that at least 2 of them choose the

shusha [124]

Using the binomial distribution, it is found that there is a 0.0328 = 3.28% probability that at least 2 of them choose the same quote.

<h3>What is the binomial distribution formula?</h3>

The formula is:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$C_{n,x} = \frac{n!}{x!(n-x)!}$

The parameters are:

x is the number of successes.

n is the number of trials.

p is the probability of a success on a single trial.

In this problem, we have that:

There are 6 students, hence n = 6.

There are 20 quotes, hence the probability of each being chosen is p = 1/20 = 0.05.

The probability of one quote being chosen at least two times is given by:

$P(X \geq 2) = 1 - P(X < 2)$

In which:

P(X < 2) = P(X = 0) + P(X = 1).

Then:

$P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}$

$P(X = 0) = C_{6,0}.(0.05)^{0}.(0.95)^{6} = 0.7351$

$P(X = 1) = C_{6,1}.(0.05)^{1}.(0.95)^{5} = 0.2321$

Then:

P(X < 2) = P(X = 0) + P(X = 1) = 0.7351 + 0.2321 = 0.9672.

$P(X \geq 2) = 1 - P(X < 2) = 1 - 0.9672 = 0.0328$

0.0328 = 3.28% probability that at least 2 of them choose the same quote.

More can be learned about the binomial distribution at brainly.com/question/24863377

6 0

2 years ago

WILL GIVE BRAINLIEST FOR A CORRECT ANSWER:

guapka [62]

Answer:

Solution:

the boat's speed in still water: x

The speed with current: (x+3)

The speed against current: (x-3)

The equation is

3(x+3) = 4(x-3)

x = 21 mph

The distance = 3*(21+3)= 72 miles

I choose (A)

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

The isosceles triangle has two sides with the same length. The base is one-half the length of a side. The expression which repre

gavmur [86]

Answer:

20 units

Step-by-step explanation:

s = 8

Perimeter = s + s + $\frac{1}{2}*s$

$= 8 + 8 + \frac{1}{2}*8$

= 8 + 8 + 4

= 20 units

8 0

3 years ago

Read 2 more answers