Answer:
![\frac{18}{7}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B7%7D)
Step-by-step explanation:
![2\frac{4}{7}](https://tex.z-dn.net/?f=2%5Cfrac%7B4%7D%7B7%7D)
→ Multiply 7 by 2 then add 4
7 × 2 = 14 + 4 = 18 ⇔ Numerator
7 ⇔ Denominator
Answer:
range: 13, mean: 6
Step-by-step explanation:
You get range by subtracting the largest number (15) by the smallest number (2). 15-2 equals 13.
You get mean by adding up all of the numbers (2+2+3+4+5+5+6+8+10+15=60) and dividing the sum by the amount of numbers in the list (10). 60/10 equals 6.
Answer:
Step-by-step explanation:
y = 5x + 4
-5x + y = 4 ----------------------(i)
3x + 2y = 20 --------------------(ii)
Multiply equation (i) by (-2)
(i)* (-2) 10x - 2y = -8
(ii) <u>3x + 2y = 20</u> { Now add this two equations}
13x = 12 { -2y and 2y got eliminated}
x = 12/13
Plug in value of x in (i)
-5*12/13 + y = 4
-60/13 + y = 4
y = 4 + 60/13
![y=\frac{4*13}{1*13}+\frac{60}{13}\\\\=\frac{52}{13}+\frac{60}{13}\\\\=\frac{112}{13}\\\\=8\frac{8}{13}y=](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B4%2A13%7D%7B1%2A13%7D%2B%5Cfrac%7B60%7D%7B13%7D%5C%5C%5C%5C%3D%5Cfrac%7B52%7D%7B13%7D%2B%5Cfrac%7B60%7D%7B13%7D%5C%5C%5C%5C%3D%5Cfrac%7B112%7D%7B13%7D%5C%5C%5C%5C%3D8%5Cfrac%7B8%7D%7B13%7Dy%3D)
9514 1404 393
Answer:
-8x -11
Step-by-step explanation:
Use the distributive property to eliminate parentheses. Then combine the constant terms.
-4(2x +4) +5
= -8x -16 +5
= -8x -11