Problem 34
Solve and graph the inequality. $$14-3 x>5$$
Problem 35
Interest Rate Find the annual interest rate on a certificate of deposit that earned \(\$ 128.98\) interest in 1 year on a principal of \(\$ 1500\).
Problem 37
Solve the percent equation. 576 is what percent of 800 ?
Problem 38
Geometry The longest side of a triangle is 3 times the length of the shortest side. The third side of the triangle is 4 inches longer than the shortest side. The perimeter is 49 inches. What are the lengths of the three sides of the triangle?
Problem 40
Solve and graph the inequality. $$25 x+4 \leq 10 x+19$$
Problem 40
Solve the percent equation. \(148.8\) is what percent of 960 ?
Problem 42
Solve and graph the inequality. $$9(y-4) \leq 36$$
Problem 42
Time A jogger leaves a point on a fitness trail running at a rate of 4 miles per hour. Ten minutes later, a second jogger leaves from the same location running at 5 miles per hour. How long will it take the second jogger to overtake the first? How far will each have run at that point?
Problem 43
Mental Math It takes you 4 hours to drive 180 miles. Explain how to use mental math to find your average speed. Then explain how your method is related to the formula \(d=r t\).
Problem 44
Error Analysis A student solves the equation \(S=2 l w+2 l h+2 w h\) for \(w\) and his answer is \(w=\frac{S-2 l w-2 l h}{2 h}\). Describe and correct the student's error.