You can create a table to organize your data and create your equation.
Answer:
C. 19.5
Step-by-step explanation:
Chen checked the temperature 14 times at dawn and at dusk
Answer:
100 and 80
Step-by-step explanation:
Let x = be the first angle
x-20 is the second angle
They are supplementary so they add to 180
x+x-20 = 180
Combine like terms
2x-20 =180
2x-20+20 =180+20
2x= 200
Divide by 2
2x/2 = 200/2
x= 100
The first angle is 100 and the second is x-20
x-20 = 100-20=80
The two angles are 100 and 80
Answer:
112
Step-by-step explanation:
7+9+11+13+15+17+19+21
