3 years ago

The half-life of a radioactive substance is 275 days. How many days will it take for 70% of the substance to decay?

Mathematics

1 answer:

skelet666 [1.2K]3 years ago

4 0

It would take 36 days total to decay

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$\boxed{\text{The distributive property}}\\\\\text{In order to solve the equation, you would have to first use the }\\\text{distributive property:}\\\\14k + 2 (3k+5) -5 = 10\\\\\text{Distribute the 2 to the variables inside the parenthesis}\\\\14k+6k+10-5=10\\\\\text{You can see that your outcome matches the equation in the question}\\\\\text{Therefore, the distributive property would be your answer}$