Describe the error in solving the equation for x. 10 should be subtracted from each side before the second step. Like terms should have been combined on the left side before the second step. In the third step, 10 cannot be divided by a variable expression because it could equal zero. In the second step, there is no x in 3b to factor out. Question 2 Correct the error.

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?

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.