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charle [14.2K]
3 years ago
13

Solve for y: 7/9y = 42

Mathematics
2 answers:
Eva8 [605]3 years ago
8 0
7/9y=42

Take the denominator and multiply it by the whole. 9*42=378

Then take your answer and divide it by the numerator. 378/7=54

To check your work just simply multiply 7/9 * 54 = 42
iren2701 [21]3 years ago
4 0
I answered on paper hope that is alright with you. I just find it easier for math problems. That slash means two numbers cancel each other out. What's in the box is the answer and the proof that it's right is underneath.

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MakcuM [25]

Answer:

1st quartile is 136

The second quartile is also the median 142

The third quartile is 162

The interquartile range is the difference between the 3rd and first quartile or 26

Step-by-step explanation:

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2 years ago
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iragen [17]

Answer:

a

Step-by-step explanation:

4 0
3 years ago
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Solve for x <br> log2(5x-4)=4 <br> Please show steps
lina2011 [118]

Answer:

x=1.2

Step-by-step explanation:

2(5x-4)=4

distribute 2 to 5x and -4

10x-8=4

add 8 to negative 8 and 4

10x=12

now divide both sides by 10

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6 0
2 years ago
Which expression is equivalent to (3x-6)(4x+1)
vodka [1.7K]

Answer:

12x^2 -21x -6

Step-by-step explanation:

(3x-6)(4x+1)

FOIL

first 3x*4x= 12x^2

outer 3x*1 = 3x

inner -6*4x = -24x

last  -6*1 = -6

Add them together

12x^2 +3x -24x -6

Combine like terms

12x^2 -21x -6

8 0
2 years ago
The formula for the circumference of a circle is C = 2r. What is one-fourth of the circumference of a circle that measures 12 ce
Harman [31]

The formula of a circumference is:

C=2\pi r

r - radius

or

C=d\pi

d - diameter

We have d = 12cm. Substitute:

C=12\pi\ cm

One-fourth of the circumference:

\dfrac{1}{4}C=\dfrac{1}{4}\cdot12\pi=3\pi\ cm\approx3\cdot3.14=9.42\ cm

<h3>Answer:  9.42 cm.</h3>
5 0
3 years ago
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