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Arada [10]
2 years ago
7

What is 7x+5y=-7 and 9x-2y=-9

Mathematics
2 answers:
Brilliant_brown [7]2 years ago
8 0
X=-1 and y=0. I hope.

dedylja [7]2 years ago
6 0
1. X= - 1 5y/7 

2. X= 2y/9 - 1

I hope this helps. :)
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you choose a marble at random from a bag containing 12 red,12 blue,15 green,9 yellow and 12 black marbles
nirvana33 [79]

Answer:

okay i will pick one red one and i hope this helps lol

Step-by-step explanation:

7 0
3 years ago
A wood stove burns 4 same sized logs in 2 hours how many logs does the stove burn in 8 hours
insens350 [35]
By using the information you have, you can use make a proportion to solve this. You burn 4 logs in 2 hours or 4/2. You are comparing this to your unknown number, x, over 8 hours. So it looks like this 4/2 = x/8. You read it as four logs in two hours is x logs in eight hours. To solve you cross multiply. You do 2 times x and 4 times eight. That would be 2x= 32. Your goal is getting x alone, so divide each side by 2. Your answer is x= 16 logs in eight hours. You can solve this different and maybe easier ways but this is the best way if you want to get used to going this in algebra. Hope that helps! :)
8 0
2 years ago
Read 2 more answers
Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used. Let f(t) be the number of vinyl records s
KIM [24]
I FOUND YOUR COMPLETE QUESTION IN OTHER SOURCES.
 PLEASE SEE ATTACHED IMAGE.

 First, we define the variables:
 x: number of years after 1950
 f (x): amount of vinyl sold.
 Then, with the variables defined, we have:

 68594 vinyl records were sold in 1958 ---------> f (8) = 68594

 91299 vinyl records were sold in 1961 ---------> f (11) = 91299

 38720 vinyl records were sold in 1952 ---------> f (2) = 38720

 161743 vinyl records were sold in 1967 ---------> f (17) = 161743

5 0
2 years ago
Write the equation of the line with the given point and slope. <br><br> (-5, -3); slope = -3/5
ycow [4]

point-slope equation - y+3= -3/5( x+5)

slope-intercept form- y= -3/5x +b

6 0
3 years ago
Need help for 2 and 3 fast
gulaghasi [49]

Answer:

2^{-4} = 1/16

6^{-5} × 6^{5} = 1

Step-by-step explanation:

2^{-4} = 0.0625

0.0625 = 1/16

6^{-5} × 6^{5} = 1

3 0
2 years ago
Read 2 more answers
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