There are 220 students in year 9. There are 20% more boys then girls.
a) How many boys are there in year 9
b) How many girls there in year 9

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.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

How to write four times a number,minus 6,is equal to theee times the number+8 as an equqtion