There are initially 80 bacteria cells in Petri dish. The number of bacteria cells double every 30 minutes. How many bacteria cells will be in the Petri dish after 3 hours?

After 3 hours we will have 6 doublings.

2^6 = 64

Therefore the number of bacteria will be 80 * 64 =

5,120 bacteria

Step-by-step explanation:

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step-by-step explanation:

sorry no step by step

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.