Because then it would be easier to get an answer for a problem
6n+1 = 25
subtract 1 from each side
6n+1-1 = 25-1
6n = 24
divide each side by 6
6n/6 = 24/6
n =4
3 weeks x 110 minutes = 330 minutes
330 minutes a week x 14 weeks = 4620 minutes
4620 divided by 60 minutes = 77 hours
77 hours is your answer
Answer:
D
Step-by-step explanation:
The centroid of a triangle is the intersection of the three medians of the triangle (each median connecting a vertex with the midpoint of the opposite side).
ΔBED and Δ DEC are similar (AAA). Therefore we have the proportion:
<em>cross multiply</em>
![a^2=(18)(4)\\\\a^2=72\to a=\sqrt{72}\\\\a=\sqrt{36\cdot2}\\\\a=\sqrt{36}\cdot\sqrt2\\\\\boxed{a=6\sqrt2}](https://tex.z-dn.net/?f=a%5E2%3D%2818%29%284%29%5C%5C%5C%5Ca%5E2%3D72%5Cto%20a%3D%5Csqrt%7B72%7D%5C%5C%5C%5Ca%3D%5Csqrt%7B36%5Ccdot2%7D%5C%5C%5C%5Ca%3D%5Csqrt%7B36%7D%5Ccdot%5Csqrt2%5C%5C%5C%5C%5Cboxed%7Ba%3D6%5Csqrt2%7D)