-39/100 is the answer according to me ..
Plz mark me as brainliest if u found it helpful
X=-0.61 and Y is 4 is I did my math right
<span>50-8t<90
50-90<8t
-40<8t
8t>-40
t>-5
Solutions should go to the right.
Mary probably was solving it as following
</span>50-8t<90
<span>-8t<90-50
-8t<40 (here, when she divided both sides by -8, she had to change sign < to the sign >)
But she did not change the sign, and got
t<-5
</span>
Answer:
12.
Step-by-step explanation:
if to re-write the given condition, then

it is clear, the required constant is 12 (12 per hour).