2. Benito has $120 to go shopping. He spends $30 on a pair of jeans. Benito also wants to buy some rings that cost $18 each. He writes and solves an inequality
to determine how many rings r he can buy. Describe and correct the error he
made when solving the inequality.
18r+ 30 3 120
18r+ 30 - 30 120 - 30
18r 90
18 18
25
Benito can purchase 5
or more rings

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab