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patriot [66]
3 years ago
10

Mary draws the number line below to repersent the solution set of the inequality 50-8t<90

Mathematics
1 answer:
marta [7]3 years ago
4 0
<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>
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