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marta [7]
3 years ago
12

You can solve the following proportion by cross multiplying what will the equation be after you cross multiply x/7 = 4/14

Mathematics
2 answers:
prisoha [69]3 years ago
6 0

x in (-oo:+oo)

2/7 = x/14 // - x/14

2/7-(x/14) = 0

2/7-1/14*x = 0 // - 2/7

-1/14*x = -2/7 // : -1/14

x = -2/7/(-1/14)

x = 4

x = 4

i hope this helps

soldier1979 [14.2K]3 years ago
5 0

Answer:

x*14 = 7*4

Step-by-step explanation:

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Find the equation of the line perpendicular to y = -2x + 6 that goes through (2, 10).
neonofarm [45]
If the line is perpendicular, then its slope is the reciprocal of the given line's slope. This new line's slope is 1/2. We plug it into slope-intercept form

y = 1/2x + b

Now plug in the given point of (2, 10) and solve for b. 

10 = 1/2(2) + b
10 = 1 + b
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So your equation is y = 1/2x + 9
7 0
3 years ago
M is inversely proportional to r if m= 9 when r= 4 find m when r=2
bazaltina [42]

m=18 when r = 2.

Step-by-step explanation:

Given,

m∝\frac{1}{r}

So,

m = k×\frac{1}{r},--------eq 1, here k is the constant.

To find the value of m when r = 2

At first we need to find the value of k

Solution

Now,

Putting the values of m=9 and r = 4 in eq 1 we get,

9 = \frac{k}{4}

or, k = 36

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Now, we put r =2

m = \frac{36}{2}

or, m= 18

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m=18 when r = 2.

4 0
3 years ago
In a bag of marbles 12% were blue 18% were green and the rest were purple if the bag has 150 marbles how many were blue or green
baherus [9]

Answer:

45

Step-by-step explanation:

12 % of the marbles are blue, and

18 % of the marbles are green, so

30 % of the marbles are either blue or green.

There are 150 marbles.

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The number of blue or green marbles is 45.

8 0
3 years ago
A rectangular prism has a length of 4cm, a height of 9cm, and a width of 16cm. What is its volume, in cubic cm?
Gre4nikov [31]

Answer: 432

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Hope this helps!

5 0
3 years ago
Need help will give Brainly
asambeis [7]

Answer:

x = 323 in

Step-by-step explanation:

Given triangles are similar, so their corresponding sides would be in proportion:

3ft = 3*12 = 36 in

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\frac{3 \: ft}{14 \: ft \: 3 \: in}  =  \frac{5 \: ft \: 8 \: in}{x}  \\  \\  \frac{36}{171}  =  \frac{68}{x}  \\  \\ x =  \frac{171 \times 68}{36}  \\  \\ x =   \frac{11628}{36}  \\  \\ x = 323 \: in \:  \\  \\ x = 26 ft \: 11  in

4 0
3 years ago
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