Last week the number of bacteria in a petri dish was 2.25×102. this week the number of bacteria in the petri dish is 2.75×105. how many times more bacteria are in the petri dish this week? round the decimal to the nearest tenth. there are __ × 10__ times more bacteria in the petri dish this week compared to last week.

(2.75 x 10⁵ ) / (2.25 x 10² )

= (2.75 / 2.25) x 10⁵⁻²

= 1.2 x 10³ times .

(That's 1,200 times as many.)

There are times more bacteria in the petri dish this week compared to last week.

Step-by-step explanation:

Given: Last week the number of bacteria in a petri dish =

This week the number of bacteria in the petri dish =

Now, the number of times more bacteria are in the petri dish this week will be :

Hence, There are times more bacteria in the petri dish this week compared to last week.

a precentage of 6th graders. the population is all 6th graders. let me know if i'm wrong, i hope this ! : )

step-by-step explanation: