Answer:
7,000
Step-by-step explanation:
The answer is 7,000 because when rounding to the greatest value you basically keep on number and round the others since the 498 is lower than 500 you would keep the 7 and turn the other's into 0's hence 7,000.
Answer:
Remainder : 3x-9
The leading coefficient of the remainder is 3
Step-by-step explanation:
Let speed of the boat in still water = x miles per hour
Let speed of the current = y miles per hour
When water and current both flow in same direction then effective speed will be sum of both speeds that is (x+y)
now plug the given values in formula speed=distance/time
we get equation:
(x+y)=160/8
or x+y=20...(i)
When water and current both flow in opposite direction then effective speed will be difference of both speeds that is (x-y)
now plug the given values in formula speed=distance/time
we get equation:
(x-y)=160/40
or x-y=4
or x=4+y...(ii)
plug value of x into (i)
4+y+y=20
4+2y=20
2y=16
y=8
plug value of y into (ii)
x=4+8=12
Hence final answer is given by:
Speed of the boat in still water = 12 miles per hour
Speed of the current = 8 miles per hour
First, what's 3 to the power of 8?
Then what's 3 to the power of 10
Now subtract them by each other for your answer
