Algebra
posted by Dean .
"Do the two inequalities have the same solutions? Wriet yes or no.
5x > 0
x > 0
Solve each inequality and ch eck your solution.
9x > 81
help please?
thanks

Algebra 
CL
5x > 0
5x/5 > 0/5
x < 0 since we are dividing by a negative, the inequality changes
so, no the answer is not the same
9x > 81
x > 81/9
x > 9 
Algebra 
Do
first one no:
when dividing by a negative you need to flip the inequality sign
5x > 0 = x < 0
x<0 doesn't equal x>0
the second
x> 81/9
x> 9 
Algebra 
Anonymous
A 3mi cab ride costs $3.00. A 6mi cab ride costs $4.80. Find a linear equation that models cost c as a function of distance d.

Algebra 
Do
you should have posted as a new question

Algebra 
Dean
Can you help me on this problem as well? (or anyone.)
Solve each inequality and check your solution.
h
 > 7
4
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