Yesterday at 12 a. m. (midnight) the temperature was 1.5o F . The temperature change in the next 8-hour period of time was - 4⁄5 degree per hour. The temperature change for a 3-hour period after that was 3⁄4 degree per hour. 1. What was the temperature at 11:00 a. m.?
2. What was the change in temperature from midnight to 11 a. m.?

x=half

step-by-step explanation:

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

5+2x=a

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step-by-step explanation: