Four people invested in a restaurant. one person invested $100,000. two others invested in
the ratio x: 2x, and the fourth person invested an amount equal to the other three investors
combined. the total investment was $ 1,100,000.
part a
write an expression for the amount invested by the fourth person.

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

At the olympic games, many events have several rounds of competition. one of these events is the men's 100-meter backstroke. the upper dot plot shows the times (in seconds) of the top 8 finishers in the final round of the 2012 olympics. the lower dot plot shows the times of the same 8 swimmers, but in the semifinal round. which pieces of information can be gathered from these dot plots? (remember that lower swim times are faster.) choose all answers that apply: a: the swimmers had faster times on average in the final round. b: the times in the final round vary noticeably more than the times in the semifinal round. c: none of the above.