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GalinKa [24]
3 years ago
11

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Mathematics
1 answer:
sergeinik [125]3 years ago
4 0

Answer:

B. 3

Step-by-step explanation:

If you were to multiply the top equation by 3 then the x value for the first equation would be 6 and since the bottom equation's x value is -6, if you were to add them, they would cancel eachother off.

LOL hope this makes sense :) Please give brainliest!! Thanks!!

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Jonathan’s parents told him that for every 5 hours of homework or reading he does he gets three hours of video games. His friend
Anarel [89]

Answer:

Jonathan

Step-by-step explanation                                                                                             30 * 5 = 150/ 60 = 2.5      2 hours and 30 minutes of playing time for every 5 hours is for Lucas. Jonathan gets 30 minutes more for every 5 hours.                                                                          

8 0
3 years ago
Solve algebraically<br><br> 8x + 10y = -4<br><br> -4x = 2 + 5y
Rufina [12.5K]

The answer to the first one is:

x=-5/4y+-1/2. Why? 

 In the equation 8x+10y=-4, you subtract 10y form each side which leaves you with 8x=-10y-4. Right? Then you divide each side by 8 which gives you the answer

The answer to the second one is the same answer to the first problem. Why? Because you can already divide each side which gives you x=-5/4y+-1/2.

Hope this helps :^) 

8 0
3 years ago
Please help me pls 7tyh grade math
Andrews [41]
(4/7)-(1/3)
(12/31)-(7/21)
(5/21) is left
Or
In decimal form
(4/7)=0.571
(1/3)= 0.333
0.571-0.333
=0.238
8 0
3 years ago
Apply the rules for order of operations to simplify 2+3-4+(5X4)
katovenus [111]
The answer should be 21 hope it helps
5 0
3 years ago
Read 2 more answers
9: The points (−2,5) and (5,−9) lie on the same line. ​ ​What is its equation in slope-intercept form of this line? ​ ​ y= x +
iren2701 [21]

Answer:

y=negative 2x+1

Step-by-step explanation:

rise over run negative 14 over 7 equals negative 2 and the y intercept is 1

5 0
3 years ago
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