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tatyana61 [14]
2 years ago
15

3(x- 1) - 8 = 4 (1+ x) = +5

Mathematics
1 answer:
katrin [286]2 years ago
6 0

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

x = 5 x = 4

Step-by-step explanation:

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How many years will it take for a person in the United States eat 1,120 pounds of turkey (14 pounds)
Liono4ka [1.6K]
If I understand you, a person eats about 14 pounds of turkey a year.  So we will divide all that turkey (1120 pounds) by 14 to find out how many years.

1,120 ÷ 14 = 80   So it will take 80 years.   (Since babies can't eat that much turkey a year it will actually take more than 80 years - or the person can eat more than 14 pounds in some years to make up for their early years when they ate less)  I know it's a math question, but I also like to be realistic about it.  Who measures the amount of turkey they eat yearly anyway?  :-)
3 0
3 years ago
Need help with 34,35,36,37
nirvana33 [79]
34. x - 3 = 8x + 4
      -3 - 4 = 8x - x
      -7 = 7x
      -7/7 = x
      -1 = x

y = x - 3
y = -1 - 3
y = -4

solution is (-1,-4)
===================
35. -6 = -x - 2y
      x = -2y + 6

2 + 5x = -2y
2 + 5(-2y + 6) = -2y
2 - 10y + 30 = -2y
32 = -2y + 10y
32 = 8y
32/8 = y
4 = y

2 + 5x = -2y
2 + 5x = -2(4)
2 + 5x = -8
5x = -8 - 2
5x = -10
x = -10/5
x = -2

solution is (-2,4)
==================
36. 4x + 6y = 2000
       x + y = 410
==================
37. 4x + 6y = 2000
       x + y = 410......multiply by -6
----------------------
4x + 6y = 2000
-6x - 6y = - 2460 (result of multiplying by -6)
--------------------add
-2x = - 460
x = -460/-2
x = 230 <=== tickets in advance
 

3 0
3 years ago
Help pleaseeeeeeeee?!?!
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Strong, they are all close together and close to the line.

5 0
3 years ago
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What is the slope of the line? PLEASE HURRY
SSSSS [86.1K]

Answer:

Step-by-step explanation:

rise/run. up 3 and over 4. so your slope is 3/4

6 0
2 years ago
A light bulb consumes 1440 watt hours per day. How long does it take to consume 4680 watt hours?
Lisa [10]
3.25 hours you take 4680÷1440 = 3.25
8 0
3 years ago
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