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Norma-Jean [14]
4 years ago
13

a Radioactive material has a half life of 18.4 days. How Much Time Is Needed For A 50 mg sample to decay to 12.5 mg?

Mathematics
1 answer:
AnnZ [28]4 years ago
6 0
36.8 days is the answer to your question
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Erin’s car uses 6 gallons of gas for every 138 miles she drives.which equation could be used to find how many gallons,g, Erin ne
gladu [14]

The equation that could be used to find how many gallons Erin would need to drive 92 miles is 92 = 23g (option c)

<h3>How many gallons is needed to drive 92 miles?</h3>

The first step is to determine the gallons needed to drive 1 mile. To do this, divide the  6 gallons by 138 miles. Division is the process of grouping a number into equal parts using another number. The sign used to denote division is ÷.

Gallons needed for 1 mile = 6/138

In order to determine the gallons needed for 92 miles, multiply the ratio gotten in the previous step by 92

(6/138) x 92 = 4 gallons

The option that gives 4 gallons is : 92 = 23g

g = 92 / 32 = 4

To learn more about division, please check: brainly.com/question/13281206

#SPJ1

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2 years ago
I NEED AN ANSWER PLEASE!
Nata [24]

Answer:

1×-5= -5squared =25+(4×-4squared)=25+(-16)=9

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3 years ago
What is 4.74 divided by 0.06 (needed by this Friday, today is Tuesday, March 5th, I also need to know what 19.44 divided by 0.54
sladkih [1.3K]

4.74/.06=79

19.44/.54=36

I used a calculator. You can change each decimal into a fraction to solve too.

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I believe her hourly wage is $14/h because since she works an unpaid day for every day she does work. Therefore the 50% of her daily wage goes to the next day...
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It would be A.) (5,0)
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