Answer:
12 km
Step-by-step explanation:
Let
x km/h = speed of the canoe on the lake
y km/h = speed of the current
<u>With the current:</u>
Speed = x + y km/h
Distance = 30 km
Time = 3 hours 20 minutes = 
hours
Thus,
<u>Against the current:</u>
Speed = x - y km/h
Distance = 28 km
Time = 4 hours
Thus,
Add these two equations:
<u>On the lake:</u>
Time = 1.5 hours
Speed = 8 km/h
Distance 
Two ways of solving it:
The angle beside the 71 is equal to
180 - 71 = 109
so a triangle angles sums up to 180
so the reminaing is
x = 180 - 109 - 28 = 43
solution (2):
the exterior angle = sum of interior angles except the one near it.
28 + x = 71
x = 43
Answer:
9 quarters and 7 dimes
Step-by-step explanation:
1 quarter = $0.25
1 dime = $0.10
9 (0.25) = $2.25
7 (0.10) = $0.70
2.25 + 0.70 = $2.95
The answer is True 1/2 divided by 4 and 4 divided by 1/2
50 points decreased by 26% is
37 points.
50 points decreased by 26% is
37 points.
