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alekssr [168]
2 years ago
7

Solve the proportion 2/7= x/28​

Mathematics
2 answers:
Vlada [557]2 years ago
8 0

Answer:

8

Step-by-step explanation:

Margaret [11]2 years ago
8 0

Answer:

8

Step-by-step explanation:

7 can go into 28. So 28 divided by 7 = 4. 4 times 2 equals 8. So now they are equal fractions

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Factor the polynomial by its greatest common monomial factor.<br> 3b^5+15b^4−18b^7
Natasha2012 [34]

Answer:

Step-by-step explanation:

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2 years ago
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Angelina_Jolie [31]
Okay so to represent juice we are going to use X, and to represent water we are going to use Y.

We also know that the first two starting equations are:

6x + y = 135

4x + 2y = 110

We can re-arrange the first equation so that it equals y (for now), so it is going to end up looking like this:

y = -6x +135

Now you can take that equation and plug into either one of the starting two equations.  I chose the second equation.  We just substitute what y equals in for y in the equation, so we have:

4x + 2(135 - 6x) =  110

Now solve

4x + 270 -12x = 110

-8x + 270 = 110

Subtract 270 from both sides

-8x = -160

Now divide by -8 on both sides

x = 20

We can now confirm that juice costs $20

Now lets plug that into the equation where we solved for y, to get the actual value of y.

y = 135 - 6(20)

y = 135 - 120

y = 15

The price of water costs $15

From this we can conclude that the cost of juice is $20 and the price of water is $15

5 0
3 years ago
The values in the table represent a linear function. What is the common difference of the associated arithmetic sequence
Helga [31]
Answer: 17

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3 years ago
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