Answer:
7.62 is the answer
Step-by-step explanation:
hope it helps !
Let
x---------> the rate of the boat in still water in mph
y--------> the rate of the current in mph
we know that
Upstream
equation 
Downstream
equation 
Adds equation and equation
Find the value of y
therefore
the answer is
the rate of the boat in still water is 
the rate of the current is 
Answer:
B
Step-by-step explanation:
positive 3
I need you to explain more I just do not get it I want to help you u need to explain it more
Step-by-step explanation:
1. if the number of pages in the 1st day is 'x', then the 2d day - 'x+10', the 3d day - 'x+20', the 4th day - 'x+30', the 5th day - 'x+40' and the last day - 'x+50' pages;
2. if the sum of all the pages is 300, then it is possible to make up the equation:
x+x+10+x+20+x+30+x+40+x+50=300;
3. x=25, it means:
1st day - 25;
2d day - 35;
3d day - 45;
4th day - 55;
5th day - 65;
6th day - 75 pages.
