What number has a place value of that is 100 times the place value of 6 in 2,386?

Mathematics

2 answers:

cupoosta [38]3 years ago

6 0

Answer:

Step-by-step explanation:

Move the decimal two to the right from the six, and you get 3 :)

aivan3 [116]3 years ago

3 0

Answer:

1,000

Step-by-step explanation:

It would be 3 places to the left, that is 1,000 so ya!

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A solution containing 12% alcohol is to be mixed with a solution containing 4% alcohol to make 20 gallons of solution containing

stepan [7]

Answer:

Step-by-step explanation:

Given that a solution containing 12% alcohol is to be mixed with a solution containing 4% alcohol to make 20 gallons of solution containing 9% alcohol.

Let x gallons of 12% alcohol be mixed with y gallons of 4% alcohol.

Total gallons $= x+y = 20$

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b) Two equations are

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c) This is of the form Ax = B

where A = $\left[\begin{array}{ccc}1&1\\12&4\end{array}\right]$

Inverse is $\frac{1}{4-12} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\=\frac{-1}{8} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\$