Answer:
rate of motorboat: b
rate of current: c
So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$
Step-by-step explanation:
d = rt
200 = (b - c)\cdot 5
200 = (b + c)\cdot 4
b - c = 40
b + c = 50
Adding these equations, we get:
2b = 90
b = 45
So
c = 50 - 45 = 5
<u>Therefore the rate of the boat is 45kph, and the rate of the current is 5kph</u>
Hope this helps :)
Answer:
False
Step-by-step explanation:
The answer is true or false
Melissa's homeroom raised 63% of its goal for the school
fundraiser. Matt's homeroom has raised 48%. Since it is a percentage of their
goal, a situation in which Matts homeroom raised more money that Melissa's
homeroom is when Matts goal is much bigger than melissas goal, so even if
melissas has bigger percentage, matt has more money.
Example
Matts goal is 1000 so 1000*.48 = 480
Melissas goal is 500 so 500*.63 = 315
1/2. 1/6
1/2×3=3/6
3/6+1/6=4/6
4/6=2/3
2/3
