11. A student did a survey of teachers' ages
The cumulative frequency curves show information about the ages of the male teachers and
the ages of the female teachers.
100
90
80
70
60
Cumulative
Frequency 50
male teachers
40
30
female teachers
20
10
0
20
30
40
50
60
70
Age in years
(a) Find an estimate for the number of the male teachers older than 50 years of age.

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The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%