Question

Which values are solutions to 90 < –30p + 15? check all that apply.p = –10p = 0p = –2.5p = 3p = –5p = 7.6?

Answer 1

The given inequality is

`90 < -30p + 15`

We need to isolate p, and for that , first we subtract 15 to both sides, that is

`90-15< -30p+15-15`

`75 < -30p`

Dividing both sides by -30. And on dividing by negative number, the sign of the inequality change . That is

`-2.5>p \\ p<-2.5`

And -10 is less then -2.5 . So the correct option is

`p=-10`