Answer:
wouldnt it be d
Step-by-step explanation:
Answer:
Bus speed: 22 mph; Trolley speed: 14 mph
Step-by-step explanation:
Let rb represent the speed of the bus and rt the speed of the trolley. Then rb = rt + 8 (mph).
Recall that distance = rate times time. Two different distances and two different speeds are involved here, but only one time.
Thus,
60 mi 44 mi
--------------------- = time (same in both cases) = -------------
rt + 8 mi/hr rt
Cross-multiplying, we get 44rt + 8(44) = 60 rt, or
352 = 16rt.
Solving this for rt, we get rt = speed of bus = 352/16 = 22 mph
The speed at which the bus travels is 22 mph and that at which the trolley travels is (22 mph - 8 mph) = 14 mph
Answer:
x = 110
y = 40
Step-by-step explanation:
m∡5 = 30° because it forms a linear pair with ∡6, which is 150°
x + y = 150 (angles 4 and 6 are alternate-interior and are congruent)
angles 3 and 6 are same-side interior and are supplementary
therefore: x -2y = 180-150
if x + y = 150 we can say that x = 150 - y
we can plug '150-y' for 'x' in x - 2y = 30
150-y - 2y = 30
-3y = -120
y = 40
x = 110
F . i . v . e. .. is the a n s w e r. . . . . . .
Answer:
B = 2
Step-by-step explanation:
( 2 b + 4 ) 2 − 12 = 0
Distribute..
2b+4(2)-12=0
combine like terms
2b+8-12=0
2b-4=0
Now solve this simple 2 step equation...
2b-4=0
+4=+4 <- add 4 to both sides
----------
2b=4
/2 = /2 <- divede both sides by 2
-----------
B = 2
