[size=150]28 students travel on a field trip. They bring a van that can seat 12 students. Elena and Kiran’s teacher asks other adults to drive cars that seat 3 children each to transport the rest of the students.[br][br]Elena wonders if she should use the inequality [math]12+3n>28[/math] or [math]12+3n\ge28[/math] to figure out how many cars are needed. Kiran doesn’t think it matters in this case. Do you agree with Kiran? Explain your reasoning.[/size]
In the cafeteria, there is one large 10-seat table and many smaller 4-seat tables. There are enough tables to fit 200 students. Write an inequality whose solution is the possible number of 4-seat tables in the cafeteria.
5 barrels catch rainwater in the schoolyard. Four barrels are the same size, and the fifth barrel holds 10 liters of water. Combined, the 5 barrels can hold at least 200 liters of water. Write an inequality whose solution is the possible size of each of the 4 barrels.
How are the last two problems similar?
[math]5(n-4)=\text{-}60[/math]
[math]\text{-}3t+\text{-}8=25[/math]
[math]7p-8=\text{-}22[/math]
[math]\frac{2}{5}(j+40)=\text{-}4[/math]
[math]4(w+1)=\text{-}6[/math]
Select [b]all[/b] the inequalities that have the same graph as [math]x<4[/math].
How much did the person’s weight decrease?
By what percentage did the person’s weight decrease?