Elena walked 40 minutes more than Lin. Jada walked three times as long as Elena. Jada walked for 120 minutes. The equation 3(x + 40) = 120 describes this situation. What does the variable x represent? * answers=
-The number of minutes that Jada walked
-The number of minutes that Elena walked
-The number of minutes that Lin walked
-None of the above

Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.