15. 6 - -3 = 6 + 3 = 9. Answer: 9 degrees C
16. 7 - -7 = 7 + 7 = 14. Answer: 14 degrees F
17. -1 - -5 = -1 + 5 = 4. Answer: 4 degrees C
18. 5 - -2 = 5 + 2 = 7. Answer: 7 degrees C
19. 130 - -110 = 130 + 110 = 240. Answer: 240 degrees C
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Lol, I couldn't figure out how to write it out, but I do think that it's right. But if not I'm sorry!
Answer:
<em>a = 1 ; b = - 8 </em>
Step-by-step explanation:
x² + 2x - 7 = (x² + 2x + 1) - 1 - 7 =<u><em> (x + 1)² - 8 </em></u>
<em>a = 1 </em>
<em>b = - 8</em>
Answer:
x + 4y = 51
x = -4y + 51
Substitution
-3(-4y + 51) + 5y = 85
Distribution
12y - 153 + 5y = 85
Combine like terms
17y = 238
y = 14
x = -4(14) + 51
x = -7
Please mark for Brainliest!! :D Thanks!!
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She would have 106 copies left.I think this because since she has to make 47 copies and since they are double sided you would have to multiply be 2.Which would give you 94 and then you subtract 94 from 200.It would give you 106 in the end.