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3 years ago

How many times does 4 go into 90.5?

2 answers:

8 0

To find the answer, you need to divide 90.5 by 4. The answer to that is 22.625, and if you want to check the answer, 22.625 x 4 = 90.5. Hope this helps :)

lapo4ka [179]3 years ago

5 0

22.625..........................................................................

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Little sister needs help, can anyone explain this to her?

harkovskaia [24]

we are given

Number pages=8

Time taken =12 minutes

so, ratio = ( number pages)/(time taken)

so, we get

$=\frac{8}{12}$

now, we can simplify it

we can factor numerator and denominator

$=\frac{2\times 2\times 2}{2\times 2\times 3}$

now, we can cancel common terms

$=\frac{2}{3}$

So, simplest form is

$=\frac{2}{3}$ ..............Answer

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4 years ago

Need help pls I’m taking a test

Charra [1.4K]

Answer:

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3 years ago

The function g(x) = 3x + x is an odd function. Which transformations of g(x) would result in odd functions? Check all

Aleksandr-060686 [28]

Answer:

-g(x),g(2x),g(-x)

Step-by-step explanation:

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4 years ago

I suck at story problems can I please have help?

Mamont248 [21]

b=cost per burrioto

t=cost per taco

3 burritos and 4 tacos costs 11.33; 3b+4t=11.33

9 burritos and 4 tacos costs 22.07; 9b+4t=22.07

c. solve

3b+4t=11.33

9b+4t=22.07

mulitply irst equation by -1 and add to 2nd to cancel t's

-3b-4t=-11.33

6b+0t=10.74

6b=10.74

divide both sides by 6

b=1.79

subsitute back

3b+4t=11.33

3(1.79)+4t=11.33

5.37+4t=11.33

4t=5.96

divide both sides by 4

t=1.49

solution: 1 taco costs $1.49 and 1 burrito costs $1.79

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4 years ago

The probability that your call to a service line is answered in less than 30 seconds is 0.75. Assume that your calls are indepen

vfiekz [6]

Answer:

a) 0.2581

b) 0.4148

c) 17

Step-by-step explanation:

For each call, there are only two possible outcomes. Either they are answered in less than 30 seconds. Or they are not. The probabilities for each call are independent. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

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

In which $C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

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

And p is the probability of X happening.

In this problem we have that:

$p = 0.75$

a. If you call 12 times, what is the probability that exactly 9 of your calls are answered within 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is $P(X = 9)$ when $n = 12$ . So

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

$P(X = 9) = C_{12,9}.(0.75)^{9}.(0.25)^{3} = 0.2581$

b. If you call 20 times, what is the probability that at least 16 calls are answered in less than 30 seconds? Round your answer to four decimal places (e.g. 98.7654).

This is $P(X \geq 16)$ when $n = 20$