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2 years ago

9

It is given that 3/7 , 12/m and n/49 are equivalent fractions. Find the value of ‘m’ and ‘n’.

1 answer:

denis23 [38]2 years ago

4 0

Answer:

m=28

n=21

Step-by-step explanation:

3×4=12

7×4=28

28×1.75=49

12×1.75=21

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Please give an explanation on how you got this answerI'm not sure if it's too late or what, but I can't get it.

Alona [7]

Step 1: multiple the second equation by 2 so that you get -1/4 for the coefficient of y, the same as in equation 1
equation 2 multiply by 2: 1/4 x - 1/4 y=38 ..........name this equation 3
subtract equation 1 from equation 3: (1/4 x -1/2 x)=38-10
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so the answer is A

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3 years ago

20,18,13,17,18 find the mean,median and mode

Degger [83]

<h3>Answer:</h3>

Mean: 17.2

Median: 18

Mode: 18

<h3>Solution:</h3>

Mean: The sum of all observation divided by several observation

20+18+13+17+18=86
86÷5=
17.2

Median:it is the middlemost observation of data arraged in increasing or decreasing order of values

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(17,18,18)
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(13 , 17 , 18 , 18 , 20)

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6 0

2 years ago

Read 2 more answers

HELP ILL GIVE BRAINLIEST

SVETLANKA909090 [29]

Answer:

$\huge\boxed{\bf\:c = \frac{11}{4}}$

Step-by-step explanation:

$4c + 2c = 4c + \frac{11}{2}$

Cancel 4c on both the sides of the equation.

$2c = \frac{11}{2}$

Bring the 2 in the denominator of 11/2 to the left hand side of the equation.

$2*2c = 11\\4c = 11$

Bring 4 to the right hand side if the equation.

$\boxed{\bf\:c = \frac{11}{4}}$

$\rule{150pt}{2pt}$

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1 year ago

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Anit [1.1K]

Answer:

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Step-by-step explanation:

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3 years ago

What is the circumference of the following circle?<br> units<br> R=1

lesantik [10]

Answer:

6.28 or 157/25

Step-by-step explanation:

Firstly, you find the formula for the circumference of a circle which is C= PI ( diameter)

So since the radius is 1 you multiply it by 2 and get 2 so then you multiply 2 by 3.14 (pi) and get 6.28

I hope this helped!!!

$c = \pi(d)$

7 0

3 years ago