When a number is decreased by 5%, the result is 20. What is the original number to the nearest tenth?

The table gives the numbers of teachers and students in grades 6 to 8 at Earhart Middle School. Grade Teachers Students 6 1 25 7 2 50 8 3 75 Which teacher-to-student ratio maintains the proportional relationship described in the table?

David has two cylinder shaped bottles of punch, each with a height of 12 inches and a radius of 2 inches. He wants to fill a half-sphere punch bowl to the brim with the punch.

NA ≅ PA, MO ⊥ NA, RO ⊥ PA, MO = 7 feet What is PO? a. 7 ft b. 49 ft c. 14 ft d. 3.5 ft < my answer

A number increased by 7 is less than 15

Shown are six arrangements of a bulb, battery, and one or two copper wires. choose the arrangement (s) in which the bulb will light. (note: you may select more than one arrangement.

X (x-3) = 28 use factoring to solve the polynomial equation

An equation and the steps to solve it are shown below: 3x - one over two (8x - 2) = 4 Step 1: 3x - 4x + 1 = 4 Step 2: x + 1 = 4 Step 3: x + 1 - 1 = 4 - 1 Step 4: x = 3 Which step was the error made and why? A.

What is 39 percent of 120?

A car takes 55.3 seconds to travel 1 mile. How long does it take the car to travel 5.8 miles?

What are the domain and range of the graphed function? 2 4 6 8 10 10 8 6 4 2 7 5 3 1 9 1 3 5 7 9 y x