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AQA A Level Biology Cells

AQA A Level Biology Cells

https://mmerevise.co.uk/wp-content/uploads/2017/11/Cells-Microscopes-Cell-Cycle-and-Immunity-Questions.pdf

For Q9.a) Why is it 0.22 and not 5.4/20=0.27 please?

Reply 1

Alyssa_k

Each small box is worth 0.4, so the line for flask G crosses at 5.6.
10-5.6=4.4 to get the change in y.
change in x is 20 mins, so gradient = 4.4/20 = 0.22

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