Indra measured the lengths of her ribbons and made a line plot to record her measurements.
2 answers:
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Answer:
x=7
y=10.5
Step-by-step explanation:
1. You can apply the method of substitution, as you can see below:
- Substitute into the other equation and solve fo x:
- Substitute the value of x obtain into the first equation, then the value of y is:
<u><em>a=1/100pt is the correct answer.</em></u> First you had to multiply by t from both sides of equation, and it gave us, ⇒ . And then you had to flip an equation, and it gave us, ⇒
. You can also divide by one-hundred (100) from both sides of equation, and it gave us,
. And finally, and it gave us the answer is a=1/100pt is the final answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie
Answer:
c.
Step-by-step explanation:
Given,
Number of bacterias who alive for at least 30 days = 5,
Bacterias who alive for 2 days = 10,
Died bacterias = 10,
Total bacterias = 5 + 10 + 10 = 25,
Ways of choosing a bacteria = =
= 25,
While, ways of choosing of a bacteria who will live after 1 week = =
= 5,
Hence, the probability it will still be alive after one week = =
OPTION C is correct.