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Ede4ka [16]
3 years ago
15

How do solve you do 5b/2=27.5

Mathematics
1 answer:
inna [77]3 years ago
6 0
2.5 b = 27.5
b = 27.5 / 2.5

b = 11
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Find an equivalent system of equations for the following system:<br> 2x + 4y = 4<br> -5x + 5y = 5
tamaranim1 [39]

Answer:

x+2y=2

-1x+1y=5

Step-by-step explanation:

Any system whose equations have the following characteristic

x+2y=2

-1x+1y=1

Is equivalent to the original system, since the differ in a number, the first equation is divided by 2 and the second by 5, we can say any system is equivalent to the original when it is escalated  by a factor between its functions.

5 0
3 years ago
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Point X has coordinates (-4, -5) and point y has coordinates (--1, --5 ) which expression models the distance between points X a
sdas [7]

Answer:  The last expression shows the result of 3  so it models the distance between x and y.

Step-by-step explanation:

First you will have to  find the distance between the two points by square the x coordinates and squaring the y coordinates to find their sum .  

-4 - (-1) = -3

-5 - ( -5) = 0

-3^2 + 0^2 = d^2   where d  is the distance

9  = d^2

d= 3  

The distance is 3 units  

Now evaluate which expression have a solution as 3.

The last expression is the answer

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4 0
3 years ago
Find the rest of the equation.
Elan Coil [88]

Answer:

D = 48  E= 90 F = 42 FE = 15

Step-by-step explanation:

Sorry, i dont know how to get DF and DE yet

7 0
3 years ago
What is the equivalent decimal? Drag the answer into the box to match the fraction. 6/11
Naya [18.7K]

Answer:

The answer is D

Step-by-step explanation:

5 0
2 years ago
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I need help trying to figure this out I think I have and answer but I want to make sure.
yKpoI14uk [10]

Answer:

34

Step-by-step explanation:

The mean is calculated as

mean = \frac{frequency(midpoint)}{frequency}

let x be the missing frequency, then

Total frequency × midpoint

= (16 × 2) + 7x + (20 × 12) + (10 × 17) = 32 + 7x + 240 + 170 = 442 + 7x

Total frequency = 16 + x + 20 + 10 = 46 + x, thus

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442 + 7x = 8.5(46 + x)

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442 - 1.5x = 391 ( subtract 442 from both sides )

- 1.5x = - 51 ( divide both sides by - 1.5 )

x = 34

The missing frequency is 34

3 0
3 years ago
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