A cinema has 3 screens. last saturday there were 500 visitors
40% went to screen 1
25% went to screen 2
the rest to screen 3
work out how many visitors attended each screen

200 screen 1

125 screen 2

175 screen 3

Distribution of 500 visitors =100% attendees.

We remove a zero to find 1/10th. By converting  500 }  50/10   =  10 x 50

Step-by-step explanation:

when you add up; 40/10 +  25/10 = 4.0 + 2.5

and show 7.5 is the same as  a + b + 1 x 100

and above 7.5  = 175/100 = 1 .75

Or use the counter  x = multiply by 50

40/10 + 25/10 = 6.5

6.5-10 = 3.5

        x =3.5 x 50

For this last one we can pose new question where 300 visitors was the original total then create new data for new question.

where x = multiply by 30 and create all to tenths etc.

We subtract the shown tenths only to find the total

Then same will apply above with new data.

homozygous. one is homozygous, while two is heterozygous.

this cant be answered without the graph. you may need to add it.