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statuscvo [17]
3 years ago
13

Which expression is equivalent to 60 - 3y - 9?

Mathematics
2 answers:
disa [49]3 years ago
7 0

Answer:

the answer has to be 3(17-y)

Step-by-step explanation:

I'm pretty sure about that cause what I did at first is subtract the numbers.

<em>6</em><em>0</em><em>-3y-9</em>

=51-3y

factor our 3 from the expression.

3(17-y)

bogdanovich [222]3 years ago
6 0

Answer:

option A

Step-by-step explanation:

the expression given is equal 60-3y-9= -3y+51

The option A doing the distributive property will give you the same answer

3(17) and 3(-Y) = 51 - 3y

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Question 4
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40.2

Step-by-step explanation:

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2 years ago
If 800g of a radioactive substance are present initially and 8 years later only 450g remain, how much of the substance will be p
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t = 8 years

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r = This is what we will try and find to start with

450=800e^(r*8)

After running the math through a calculator, we end with r = -0.07192

Now we just re-input this information into our equation: A=800e^(-0.07192*16)

A=800e^(1.15072)

Now we will re-write the equation using the negative exponent rule:

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I hope this helps! :)

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