Answer:
A) x = 20
Step-by-step explanation:
ABCD is a rhombus, AC and BD are diagonals which intersect each other at point E.
Since, diagonals of a rhombus are perpendicular bisector.
![\therefore \: m \angle AED = 90 \degree \\ \therefore \: (5x - 10) \degree = 90 \degree \\ \therefore \: 5x - 10 = 90 \\ \therefore \: 5x = 90 + 10 \\ \therefore \: 5x = 100 \\ \\ \therefore \: x = \frac{100}{5} \\ \\ \huge \red{ \boxed{ \therefore \: x =20}}](https://tex.z-dn.net/?f=%20%5Ctherefore%20%5C%3A%20m%20%5Cangle%20AED%20%3D%2090%20%5Cdegree%20%5C%5C%20%20%5Ctherefore%20%5C%3A%20%285x%20-%2010%29%20%5Cdegree%20%3D%2090%20%5Cdegree%20%5C%5C%20%5Ctherefore%20%5C%3A%205x%20-%2010%20%3D%2090%20%20%5C%5C%20%5Ctherefore%20%5C%3A%205x%20%20%3D%2090%20%2B%2010%20%20%5C%5C%20%5Ctherefore%20%5C%3A%205x%20%20%3D%20100%20%20%5C%5C%20%5C%5C%20%20%5Ctherefore%20%5C%3A%20x%20%20%3D%20%5Cfrac%7B100%7D%7B5%7D%20%20%5C%5C%20%20%5C%5C%20%5Chuge%20%5Cred%7B%20%5Cboxed%7B%20%5Ctherefore%20%5C%3A%20x%20%20%3D20%7D%7D)
The common factor is 2 so: 2(4x+3) is the answer
Answer:
Step-by-step explanation:
=7 (1+11+111+1111......n)
=7/9 (9+99+999+9999....n)
=7/9 ((10-1)+(10^2-1)+(10^3-1)+....n)
=7/9 ((10+10^2+10^3...n)-(1+1+1+1.....n))
=7/9 ((10 (10^n-1)/(10-1))-n)
Ok so you would plug in 18 for the x so it would be 6(18)-12 and then 6x18 is 108 and 108-12=96 so your answer is 96
It would be about 4/10 of a gallon