exam
Maths Puzzle
Numerical Ability
Add.
1+(-7)+6+(-10)
Read Solution (Total 0)
exam Other Question
Glenn can row 7 mph in still water. If it takes him the same time to row 6 miles downstream as it takes to row 4 miles upstream, what is the rate of the crrent?
3x-y<(less than/or equal to)6
x>(greater than or equal to)1
y(less than or equal to)3
changing the signs to equal signs I get
3x-y=6
y=6+3x
the two other equations confuse me as to where I go now