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3 years ago

Need help with proportions 22/27=x/18. x=???

Mathematics

2 answers:

guapka [62]3 years ago

5 0

Answer:

x = 44/3 = mixed number - 14 2/3

Step-by-step explanation:

Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.

never [62]3 years ago

3 0

Answer:14.67

Step-by-step explanation:

$\\$ 22/27 = x/ 18

$\\$ cross multiply

$\\$ 27x = 22 x 18

$\\$ 27x = 396

$\\$ x = 396/27

$\\$ x = 14.67

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GuDViN [60]

Answer:

the answer is 12+24i

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2 years ago

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olganol [36]

<em>So to solve for a variable, you have to isolate that variable onto one side.</em>

Firstly, multiply both sides by j: $h-4=kj$

Next, divide both sides by k and <u>your answer will be: $\frac{h-4}{k}=j$ </u>

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3 years ago

If there are 350 boys in a school with a total of 800 students, then what percent of the students are girls?

tester [92]

Answer:

56.25%

Step-by-step explanation:

800 - 350 = 450

1% of 800 = 8 (800 divided by 100)

450 divided by 8 = 56.25

4 0

3 years ago

Read 2 more answers

9.50 One way to evaluate the effectiveness of a teaching assistant is to examine the scores achieved by his or her students on a

EleoNora [17]

Answer:

Step-by-step explanation:

Given that a professor sets a standard examination at the end of each semester for all sections of a course. The variance of the scores on this test is typically very close to 300.

$H_0: s^2 = 300\\H_a: s^2 \neq 300$

(Two tailed test for variance )

Sample variance =480

We can use chi square test for testing of hypothesis

Test statistic = $\frac{(n-1)s^2}{\sigma^2} \\=62.4$

p value = 0.0100

Since p <0.05 our significance level, we reject H0.

The sample variance cannot be claimed as equal to 300.

5 0

3 years ago

Which graph represents the parent function of y=x^2 −5?

hjlf

From the function given:
y=x^2-5
this can be written as:
y=x^2+0x-5
writing in vertex form we get:
y=(x-h)^2+k
where: (h,k) is the vertex
y=(x-0)^2-5
thus the vertex is at (0,-5)
the parent function is y=x^2, thus the graph of the parent function is First graph

3 0

3 years ago

Need help with proportions 22/27=x/18. x=???​

Need help with proportions 22/27=x/18. x=???