Share
PLS HELP! I WILL GIVE BRAINLIEST!! AND THE REST OF MY POINTS! Last week the number of bacteria in a petri dish was 2.25×102. Thi
Question
PLS HELP! I WILL GIVE BRAINLIEST!! AND THE REST OF MY POINTS!
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.
in progress
0
Mathematics
3 years
2021-08-28T14:36:50+00:00
2021-08-28T14:36:50+00:00 2 Answers
33 views
0
Answers ( )
Answer:
1221.2 times more
Step-by-step explanation:
number of bacteria last week =![Rendered by QuickLaTeX.com 2.25*10^2](https://documen.tv/wp-content/ql-cache/quicklatex.com-c34b52d70b546e8be87c01137bd33f9d_l3.png)
=![Rendered by QuickLaTeX.com 2.25*100](https://documen.tv/wp-content/ql-cache/quicklatex.com-938ff76b9c58f6d84d9429ceaaa2fb0e_l3.png)
=![Rendered by QuickLaTeX.com 225](https://documen.tv/wp-content/ql-cache/quicklatex.com-c62cfa7b336ea6b4ef058585960901ba_l3.png)
number of bacteria this week =![Rendered by QuickLaTeX.com 2.75*10^5](https://documen.tv/wp-content/ql-cache/quicklatex.com-4ece4710d2d8d8a0e2e2b58a37be4832_l3.png)
=![Rendered by QuickLaTeX.com 2.75*100000](https://documen.tv/wp-content/ql-cache/quicklatex.com-c945c50889087883f9f61be17381483f_l3.png)
=![Rendered by QuickLaTeX.com 275000](https://documen.tv/wp-content/ql-cache/quicklatex.com-48c9a12e8cad29fbb1a58d3593d7fc73_l3.png)
(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.)
I hope this helps!