Answer:
Speed of boat in still water is 26km/hr
Step-by-step explanation:
Let the speed of boat in still water be x and speed of stream by y.
Speed at which it went upstream would be (x-y) and the speed at which it went downstream would be (x+y). According to question x+y=24 and x-y=28. x=26 and y=-2.
Melissa had a greater mark.
x=34
x+(x+12)+(100) = 180
2x+112=180
x=68
I know brainly is not the place to go for math
Brainliest
y=2.78(4)-4.4 = 6.72
The Lowest Common Denominator is 30 9/10 = 27/30 5/6 = 25/30
