Answer :
Answer:
a>-8
Step-by-step explanation:
1.5a x 10<12 x 10 + 3a x 10 Multiply by 10 on each side
15a<120 + 30a
15a - 30a<120 + 30a - 30a Cancel out 30 with -30 so that there is only one number with a in it
-15a<120
-15a(-1)>120(-1) Multiply by -1 to get -15a to be positive
15a>-120
15a/15>-120/15 Divide by 15 to get a alone
a>-8
Answer:
a < -8
Step-by-step explanation:
[tex]1.5a\cdot \:10 > 12\cdot \:10+3a\cdot \:10\\= 15a > 120+30a\\15a-30a > 120+30a-30a\\= -15a > 120\\= \left(-15a\right)\left(-1\right) < 120\left(-1\right)\\= 15a < -120\\\frac{15a}{15} < \frac{-120}{15}\\\frac{15a}{15} < \frac{-120}{15}\\= \frac{15a}{15}\\\frac{15}{15}=1\\\frac{-120}{15}\\= -\frac{120}{15}\\\frac{120}{15} = 8\\= -8[/tex]
Hope this helps! Have a good day.