1. So, Arthur already earned $136, and he needs more money, atleast $189, to buy a new coat. T, will be the amount he needs to earn next week.
136+T≥189
For this inequality and to solve it, we can just subtract 136 from each side so we can get T by itself.
T≥53
So he needs atleast $53 to buy the coat.
2. This problem involves multiplication since you score -5 each time. She wants a score less than -80, so not -80. P will be the number of correct answers she will need. Also since she wants it to be less than -80, you would use <.
-5p<-80
Now we need to divide each side by -5. But, the rule with an inequality is if you're dividing or multiplying by a negative, you have to switch the sign. The sign will be >.
p>16
She needs more than 16 correct answers to win the game.
Tell me if this helps!!
