I believe they are called opposites.
Answer:
2.
i) (c)
ii) (d)
iii) (b)
iv) (a)
3.
ii) 80°
Step-by-step explanation:
2.
i) 2x+x+3x=180°
x=30°
ii) x+110=180
x=70
iii) x+2x+30°=180
x=50°
iv) 2x+15°+45°+x=180
3x+60°=180
x=40°
3.
ii) 2x+5+25=180°
2x+30°=180°
x=75°
the measure: x+5°= 75°+5°=80°
Answer:
-x + 4
Step-by-step explanation:
(4x+5)+(−5x−1)
4x+5−5x−1 [Remove the parentheses]
-x + 4 [Combine Like Terms]
Answer:
Step-by-step explanation:
Let t represent the time driving at 50 mi/h. Then her total distance driven (in miles) is ...
distance = speed · time
290 = 50t + 45(6-t)
20 = 5t . . . . . . . . . . . subtract 270, collect terms
4 = t . . . . . . divide by the coefficient of t
Taylor drove 4 hours at 50 miles per hour, then 2 hours at 45 miles per hour.
