Question

Tell what you can do to the first inequality in order to get the second.
1.) 5z>-25;z>-5

2.) -c/4>3;C<-12

Determine whether each statement is always, sometimes, or never true. justify your answer.

3.) If x>3 and y<1, then xy>0

4.) If x<0 and y<0, then xy >0

Please help me I'm stuck

Answer 1

so what do you need help with>

Answer 2

Can you like the whole complete sentence exactly what you see on your question?

Answer 3

type the whole

Answer 4

Thats the whole thing

Answer 5

> are these supposed to be arrows or less than arrows?

Answer 6

Less then symbols

Answer 7

With this equation I would first gather the z-terms on the left of the equation to get
3z + 2z - 5 = 25 - 5z, which is
5z - 5 = 25 - 5z
To eliminate the z-term from the right side of the equation, add 5z to both sides. This maintains the balance and you get
5z - 5 + 5z = 25 - 5z + 5z, or
10z - 5 = 25
Now add 5 to both sides, again maintaining the balance to get
10z - 5 + 5 = 25 + 5, or
10z = 30.
Finally divide both sides by 10 to get

Answer 8

Thanks! Can you help me with the other ones?

Answer 9

@ImakeTyRaNiTe