How do you no if a problem is single

or proper

8x-7y=54 3x+15y=-15 system of equations

7m=91 use inverse operations and properties of equality to isolate the varible

In the company Educational Solutions, the ratio of the employees using a laptop computer to those not using one was 1:3 in the year 2005. In 2006, the number of employees using a laptop as well as those not using it doubled.

A rectangular poster is 3 times as long as it is wide. A rectangular banner is 5 times a long as it is wide. Both the banner and the poster have perimeters of 24 inches. What are the lengths and widths of the poster and banner?

3 quarts shared among 16 players and how many ounces of the drink did each player get?

Find the area of an equilateral triangle with an apothem of 4in.

Which statement is true about the value of 1612 15 15/> 6 0 161 < 6 O 161 is the distance between 0 and 6, and the distance is always positive regardless of direction. O 161 is the distance between 6 and 0, and the distance is negative from 6 to 0

What factor is used to convert feet per minute into miles per minute

Given a = {1, 3, 5}, b = {2, 4, 6} and c={1, 2, 3, 4, 5, 6}, then a ∪ (b ∩ c. =

15 in. 1. A scale drawing of a patio is shown at right. The scale is 4 inches : 6.8 feet. What are the length and width of the patio? Find the patio's area. Length: Width: Area: 14 in.