Question

solve -0.9x<-63

Answer 1

i got 7 but Im still not sure that is right

Answer 2

Reduce[-9/10 x < -63] = x > 70
Reduce is a Mathematica function

Answer 3

so x=70

Answer 4

answer is x>70
it is different from x=70

Answer 5

-0.9(70)<-63?

Answer 6

Perhaps I should have used a right arrow rather than an equal sign

Answer 7

i have to put it in a solution set so it would be {x/70} i cant figure out how to do a verticle line lol

Answer 8

divide both sides by 0.9 to get
\[-x <70\]
then since both sides are negative, you make them positive and reverse the sign in between so < becomes >

so finally \[x>70\]

Answer 9

solve -0.9x<-63
x>(-63)/(-0.9)
x>63/0.7
x>90

Answer 10

you should change the < to the >

Answer 11

in the answer key it doesnt give me that option

Answer 12

how did you get 90?

Answer 13

can i noe the option for the answer?

Answer 14

its {x/?}

Answer 15

shd101wyy made a mistake...
on the right hand side he divided by 0.7 instead of 0.9 !!!!!!

Answer 16

the answer is 70 then correct?

Answer 17

Yes ans is that x>70
tena see my solution above, it is easy to understand and correct too !!

Answer 18

if the option is x/? then the answer may not be 70

Answer 19

so the solution is {x/70}? thats what they give me to type in my asnwer. the / does not mean fraction its a verticle line. I dont know how to make one

Answer 20

oh ok

Answer 21

thank yall very much

Answer 22

Don't mean to jack this solution. Tena32, I have to apologize about your x=-4 question. The slope is undefined. I mixed up my axes. Sorry!

Answer 23

ok thanks ill fix it.

Answer 24

medals for those who gave GOOD help !!!!!