4 because 2 shoes for each stock pair and 4 × 2 = 8
Answer: 5
Step by step:
(3x+4)/2 = 9.5
3x+4 = 9.5*2
3x+4 = 19
3x = 19 -4
3x = 15
x = 5
Answer:
a. x = 14
b. Perimeter = 77
Step-by-step explanation:
a. Based on the Triangle Proportionality Theorem:
![\frac{2x - 2}{13} = \frac{21 - 7}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%20-%202%7D%7B13%7D%20%3D%20%5Cfrac%7B21%20-%207%7D%7B7%7D%20)
![\frac{2x - 2}{13} = \frac{14}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%20-%202%7D%7B13%7D%20%3D%20%5Cfrac%7B14%7D%7B7%7D%20)
![\frac{2x - 2}{13} = 2](https://tex.z-dn.net/?f=%20%5Cfrac%7B2x%20-%202%7D%7B13%7D%20%3D%202%20)
Cross multiply
![2x - 2 = 2(13)](https://tex.z-dn.net/?f=%202x%20-%202%20%3D%202%2813%29%20)
![2x - 2 = 26](https://tex.z-dn.net/?f=%202x%20-%202%20%3D%2026%20)
Add 2 to both sides
![2x = 26 + 2](https://tex.z-dn.net/?f=%202x%20%3D%2026%20%2B%202%20)
![2x = 28](https://tex.z-dn.net/?f=%202x%20%3D%2028%20)
Divide both sides by 2
x = 14
b. Perimeter of ∆QRS = RQ + QS + RS = (2x - 2) + 13 + 17 + (21 - 7) + 7
Plug in the value of x
= (2(14) - 2) + 13 + 17 + 14 + 7
= 26 + 13 + 17 + 14 + 7
= 77
Answer:
This really depends on the situation, and many variables. Is there a specific moment? Multiple buttons? Would you mind giving more context or is that it?