Answer:
1 3/5 miles/hr
Step-by-step explanation:
Let C be the speed of the current
Let D be the distance between Chan's house and the park
We know that Distance, D, is = Speed x Time
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Chan's speed going upstream is (8 - C)mph.
That gives us:
D = (8-C)(3 hr)
Chan's speed going downstream is (8+C)mph
So we have:
D = (8+C)(2 hr)
We know that the d is the same for these two equations, so:
(8-C)(3 hr) = (8+C)(2 hr)
24 - 3C = 16 + 2C
5C = 8
C = (8/5) or 1 3/5 mph
Answer:
6
Step-by-step explanation:
Let line WY be the line of reflection
RR has the midpoint at Z.
In other words, the line: =
SS is another line
It has a midpoint at X. In other words, line SX =
If SS = 12, then the line SX =
Because the shape is a parallelogram, it means that RZ = SX = 6
I believe it's the second answer, where "the test contains 10 3-point questions and 14 5-point questions."