Answered

someone please help and correct me if im wrong and explain all of it if I am please!!:) 25pts

Which numbers are solutions to the inequality x < −7, using the replacement set {−15, −10.5, −7.2, −7, 0}?




Choose all answers that are correct. I think its b-c-and d

A

–7


B

−7.2


C

−10.5


D

−15


Solve. I think its A


8y – 24 > –16

A

y > –5

B

y > –1


C

y > 1


D

y > 5


The solution to which inequality is shown

>(-10)------(-7)------(10)<(7s the number outlined) I think its A

A

y + 5 > –2


B

y + 5 ≥ –2


C

y + 5 < –2

D

y + 5 ≤ –2



Solve.











solve I think its D

  • t/5 ≥15

A

t ≤ –75

B

t ≥ –75

C

t ≤ –3

D

t ≥ –3

Verified Answer :

Kytten

Yes, B, C, and D are correct. -15, -10.5, and -7.5 are solutions to x<-7...........................
......................................................................................................................................
8y – 24 > –16.............................................................................................................
8y>8 ADD 24 to both sides .......................................................................................
y>1 so C. divide both sides by 8.................................................................................
It is not A because the opposite of subtracting 24 is adding 24. So you add 24 to both sides to undo the subtraction. -16+24=8 Then you divide both sides by 8, which gives you y>1. I think you probably subtracted 24 from -16 instead of adding it..........................................
......................................................................................................................................
I'm not sure what to make of the third one, is that a number line or...?...............................
......................................................................................................................................
- t/5 ≥15 ........................................................................................................................
-t ≥ 75 MULTIPLY both sides by 5....................................................................................
t ≤ -75 divide both sides by -1, and flip the sign, because when dividing an inequality by a negative number you must flip the sign..............................................................................
So A would be correct. ....................................................................................................
I believe if you divided the 15 by 5 and didn't flip the sign you would get D..........................

Also, sorry, my enter key isn't working right, so it's all scrunched together.

Related Questions