belen03
contestada

A colony of bacterial doubled every week. If the colony began with 40 bacteria, how many bacteria are present after 4 weeks?

Respuesta :

aerisdrost

Answer:

640 bacteria.

Step-by-step explanation:

Make a chart.

Bacteria    Weeks

40                  0

80                  1

160                  2

320                 3

640                 4


It starts off with 40 bacteria, which means no weeks have passed so far. That is why 40 pairs with 0 rather than 1.

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