18. It would be the second graph. The third graph is eliminated as the boy takes a time period to shave, which means there should be a constant point (horizontal line) right after the first incline. The first one is eliminated as the boy takes a bath which requires another constant point in the graph.
19.
C
E
D
A
B
Answer:
35° , 55°
Step-by-step explanation:
Let one angle be x.
It's complementary angle is = (90 - x)°
According to the question ,
![x - (90 - x) = 20](https://tex.z-dn.net/?f=x%20-%20%2890%20-%20x%29%20%3D%2020)
![=> x - 90 + x = 20](https://tex.z-dn.net/?f=%3D%3E%20x%20-%2090%20%2B%20x%20%3D%2020)
![=> 2x = 90 - 20 = 70](https://tex.z-dn.net/?f=%3D%3E%202x%20%3D%2090%20-%2020%20%3D%2070)
![=> x = \frac{70}{2} = 35](https://tex.z-dn.net/?f=%3D%3E%20x%20%3D%20%5Cfrac%7B70%7D%7B2%7D%20%3D%2035)
Answer:
one sixth of 7.5 pounds is 1.25, so 7.5 minus the rotten 1.25 is 6.25.
Step-by-step explanation:
Answer:
o.15 :)
Step-by-step explanation:
Considering the described changes, the temperature at 6 pm was of -14.5ºF.
<h3>How to find the temperature at 6 pm?</h3>
We look at the temperature for each interval, as follows:
- At 9 am, the temperature was -8.4°F.
- Between 9am and noon, the temperature increased by 2.6°F, hence, at noon, the temperature was of -8.4ºF + 2.6ºF = -5.8ºF.
- Between noon and 3pm, the temperature rose 1.2°F, hence, at 3 pm, the temperature was of -5.8ºF + 1.2ºF = -4.6ºF.
Between 3pm and 6pm, the temperature went down 9.9°F, hence at 6 pm, the temperature was given as follows:
-4.6ºF - 9.9ºF = -14.5ºF.
The temperature at 6 pm was of -14.5ºF.
A similar problem, involving change of temperatures, is given at brainly.com/question/3066572
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