Becky81
02.12.2021 •
Mathematics
The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled.
У
500
-450
0400
350
1300
Water (gallons)
250
200
150
100
50
+
1
2
6
7
8
9
3 4 5
Time (hours)
7
The total capacity of the water tank is
gallons, and the rate of change is
gallons per hour
Solved
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Ответ:
(x+36)° + 3x° = 180
=> 4x = 180–36
=> x = 144/4
=> x = 36
<1 = (x+36)°
= 36 + 36
= 72°
<2 = 3x
= 3×36
=108°