6 and 3/8
7 and 2/5
combine
you can just add the whole numbers
6+7=13
then add the confusing ones
3/8 +2/5
convert the bottom number to the same number
the number is 40
multiply 3/8 by 5/5=15/40
multiply 2/5 by 8/8=16/40
add
15/40+16/40=31/40
the naswer is 13 and 31/40
To solve the value of x in the above equation, here are the steps.
1. Subtract 13 on both sides of the equation.
2. Divide both sides of the equation by 4.
3. Get the square root on both sides of the equation.
![\begin{gathered} \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Csqrt%5B%5D%7Bx%5E2%7D%3D%5Csqrt%5B%5D%7B9%7D%20%5C%5C%20x%3D%5Cpm3%20%5Cend%7Bgathered%7D)
The possible values of x are +3 and -3. The smaller value is -3.
6, 7, 15, 36, 41, 43, 47, 49
Q1- 9
Median- 38.5
Q3- 46
Sample Size- 8
3x^2 - 2x - 1
x + 2 Γ 3x^3 + 4x^2 - 5x - 2
3x^3 + 6x^2
-2x^2 - 5x - 2
-2x^2 - 4x
-x - 2
-x - 2
0
Therefore, solution is 3x^2 - 2x - 1
