Hello!
First we have to find out how much each copy cost
240 / 60 = 4
Since each magazine cost $4 the answer is y = 4x; (1,4), (2,8), (3,12)
Hope this helps!
Answer:
![\displaystyle 2x - 3y = 6\:OR\:y = \frac{2}{3}x - 2 \\ \\ 3x - 2y = 40\:OR\:y = \frac{3}{2}x - 20](https://tex.z-dn.net/?f=%5Cdisplaystyle%202x%20-%203y%20%3D%206%5C%3AOR%5C%3Ay%20%3D%20%5Cfrac%7B2%7D%7B3%7Dx%20-%202%20%5C%5C%20%5C%5C%203x%20-%202y%20%3D%2040%5C%3AOR%5C%3Ay%20%3D%20%5Cfrac%7B3%7D%7B2%7Dx%20-%2020)
Step-by-step explanation:
2 = ⅔[6] + b
4
![\displaystyle -2 = b \\ \\ y = \frac{2}{3}x - 2](https://tex.z-dn.net/?f=%5Cdisplaystyle%20-2%20%3D%20b%20%5C%5C%20%5C%5C%20y%20%3D%20%5Cfrac%7B2%7D%7B3%7Dx%20-%202)
If you want it in <em>Standard Form</em>:
y = ⅔x - 2
- ⅔x - ⅔x
_________
−⅔x + y = −2 [We do not want fractions in our standard equation, so multiply by the denominator to get rid it.]
−3[−⅔x + y = −2]
![\displaystyle 2x - 3y = 6](https://tex.z-dn.net/?f=%5Cdisplaystyle%202x%20-%203y%20%3D%206)
_______________________________________________
−5 = 3⁄2[10] + b
15
![\displaystyle -20 = b \\ \\ y = \frac{3}{2}x - 20](https://tex.z-dn.net/?f=%5Cdisplaystyle%20-20%20%3D%20b%20%5C%5C%20%5C%5C%20y%20%3D%20%5Cfrac%7B3%7D%7B2%7Dx%20-%2020)
If you want it in <em>Standard</em><em> </em><em>Form</em>:
y = 3⁄2x - 20
- 3⁄2x - 3⁄2x
__________
−3⁄2x + y = −20 [We do not want fractions in our standard equation, so multiply by the denominator to get rid of it.]
−2[−3⁄2x + y = −20]
![\displaystyle 3x - 2y = 40](https://tex.z-dn.net/?f=%5Cdisplaystyle%203x%20-%202y%20%3D%2040)
* Parallel Lines have SIMILAR <em>RATE OF CHANGES</em> [<em>SLOPES</em>], so ⅔ and 3⁄2 remain the way they are.
I am joyous to assist you anytime.
I just did this a few seconds ago and the correct answer is 78. The check above the number is green which means its correct.
Answer:
x = 14
Step-by-step explanation:
Solve for x:
90 = -4 + 2 x + 3 (x + 8)
3 (x + 8) = 3 x + 24:
90 = 3 x + 24 + 2 x - 4
Grouping like terms, 3 x + 2 x - 4 + 24 = (2 x + 3 x) + (-4 + 24):
90 = (2 x + 3 x) + (-4 + 24)
2 x + 3 x = 5 x:
90 = 5 x + (-4 + 24)
24 - 4 = 20:
90 = 5 x + 20
90 = 5 x + 20 is equivalent to 5 x + 20 = 90:
5 x + 20 = 90
Subtract 20 from both sides:
5 x + (20 - 20) = 90 - 20
20 - 20 = 0:
5 x = 90 - 20
90 - 20 = 70:
5 x = 70
Divide both sides of 5 x = 70 by 5:
(5 x)/5 = 70/5
5/5 = 1:
x = 70/5
The gcd of 70 and 5 is 5, so 70/5 = (5×14)/(5×1) = 5/5×14 = 14:
Answer: x = 14
U is 10. If you subtract 11 first to get the variable and it's coefficient on its own, you see that 3u=30. To get the u on its own, you divide both sides by three. This gives you u=10