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Ber [7]
2 years ago
14

2x-y=3 4x-y=3 How many system of equations do they have

Mathematics
1 answer:
N76 [4]2 years ago
7 0

Answer:

it's was helpful to you

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maksim [4K]

Answer:

\frac{191}{40} or 4.775

Step-by-step explanation:

3 0
3 years ago
Find a substance half-life in days. round your answer to the nearest tenths
jeka57 [31]
A 33 gram sample has k value of .1124
(Actually I think the problem SHOULD be worded: A 33 gram sample has k value of -.1124/days)

See attached graphic:
Half-Life = ln (.5) / k
Half-Life = -.693147 / -.1124/days
Half-Life = <span> <span> <span> 6.1667882562 </span> </span> </span> days

Source:
http://www.1728.org/halflif2.htm





3 0
3 years ago
Read 2 more answers
Need help with number 19!!!
zhannawk [14.2K]
2+2a           1x4a
------           ------      
   b                b

LOL, idk if this is right, but it is how i think it should be solved


7 0
3 years ago
Are standardized scores and z-scores the same thing?.
tatyana61 [14]

Answer:

Yes

Step-by-Step

Z-scores are also known as standardized scores. They are scores that have been given a common standard

4 0
2 years ago
Read 2 more answers
Sharon wants to know the difference between the average amount she stacked and the average amount Diane stacked. Which operation
jek_recluse [69]
Sharon would subtract the amount that she stacked from Diane to figure out the difference.

Hope this helped :D
3 0
2 years ago
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