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Dimas [21]
3 years ago
14

A tv has height:width in ratio 9:16. In a scale drawing the height is 4.5cm. What would the width be?

Mathematics
1 answer:
ehidna [41]3 years ago
6 0
\frac{4.5}{width}=\frac{9}{16}\\\\cross\ multiply.\\16\times4.5=9(width)\\72=9(width)\\\boxed{width=8\ cm}
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-y varies inversely with x. When y = 9.6, x = 12. What is the value of k, the constant of inverse variation?
alisha [4.7K]

Question 1:

For this case we have an equation of the form:

y = \frac {k} {x}

Where,

  • <em>k: inverse variation constant. </em>

Then, substituting values we have:

y =\frac {k} {x}

From here, we clear the value of k.

We have then:

k = 9.6 * 12\\k = 115.2

Answer:

the constant of inverse variation is:

k = 115.2

Question 2:

For this case we have:

y = \frac {k} {x}

Where,

  • <em>k: constant of variation. </em>

Then, substituting the value of the constant we have:

y =\frac {5.6} {x}

We now substitute the value of x:

y = \frac {5.6} {4}\\y = 1.4

Answer:

 the value of y when x = 4 is: y = 1.4

6 0
3 years ago
Spencer has 1/3 of nuts. He divides the nuts equally into 4 bags. What fraction of a pound of nuts is it each bag?
trasher [3.6K]
Spencer??
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umm well she use this method:
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4/3
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8 0
3 years ago
Is 6/8 equal to 75 percent
slega [8]
6/8 is equivalent to 3/4, and 3/4=.75, and .75/100=75 percent. So yes, it is.
8 0
3 years ago
Read 2 more answers
For an independent-measures ANOVA comparing two treatments with a sample of n = 10 in each treatment, what is the critical value
trapecia [35]

Answer:

critical value is 4.41

Step-by-step explanation:

Given data

n = 10

α = .05

to find out

the critical value

solution

first we calculate degree of freedom i.e

degree of freedom = n -1

degree of freedom = 10 - 1

degree of freedom = 9

and

degree of freedom 2 =( n -1 ) 2

degree of freedom 2 =( 10 -1 ) 2

degree of freedom 2 = 18

so for degree of freedom 9 and degree of freedom 2 is 18  and α = .05

critical value is 4.41

4 0
3 years ago
ANSWER ASAP!!
Bezzdna [24]
They are equivalent C yeah they should be equivalent
7 0
3 years ago
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