16:12 and 4:3 since you multiply two in both sides to get 16:12 so they're equivalent and then you divide 2 on both sides to get 4:3 so that's equivalent
I would multiply to get rid of the decimals and work with whole numbers.
Since we have numbers that are "hundredths", we would need to multiply every number by 100.
60d + 5e = -450
-12d + 30e = 276 Now that the decimals are gone, if we multiply the second equation by 5 the "d's" will cancel.
60d + 5e = -450
-60d + 150e = 1380
155e = 930
e = 6
Now plug 6 back in for e and solve for d.
60d + 5(6) = -450
60d + 30 = -450
60d = -480
d = -8
(-8, 6)
If you'd rather work it with decimals just let me know.
Assuming a spherical Earth, the circumference varies as the cosine of the latitude. Your latitude is
arccos(2/3) ≈ 48.1897° ≈ 48° 11' 22.9"
_____
North or South, it doesn't matter.
Answer:
6,007,200
= 6,000,000 + 7,000 + 200
