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3 years ago

Please help with algebra problem

Mathematics

1 answer:

Leno4ka [110]3 years ago

4 0

To solve this problem you must aplpy the proccedure below:

1. You have that the lab technician mixed 520 ml solution of water and alcohol and 3% is alcohol.

2. ml of alcohol:

520 ml----100%
x----3%

x=3x520/100
x=15.6 ml

3. ml of water:

y=520 ml-15.6 ml
y=504.4 ml

14. Therefore, as you can see, the answer is:

15.6 ml of alcohol and 504.4 ml of water were used by the lab technician.

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2 years ago

Determine the values of the constants b and c so that the function given below is differentiable. f(x)={2xbx2+cxx≤1x>1

Lera25 [3.4K]

Assuming the function is

$f(x)=\begin{cases}2x&\text{for }x\le1\\bx^2+cx&\text{for }x>1\end{cases}$

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3 years ago

Possible solution for 4+x+2-2x=5

MrRissso [65]

Answer:

x=1

Step-by-step explanation:

For algebra always start by rewriting it.

4+x+2-2x=5

Then ask yourself is there any like terms we can combine, and here yes there is. 4 and 2 and x and -2x. Now lets combine them and rewrite.

6-x=5

Now lets get x alone and the quickest way is to subtract 6 to the other side

6-x=5

-6 -6

-x=-1

Now the two negatives cancel out as you would divide both sides by the coefficient -1 to get positive x alone. We can make this easier by just canceling out the negatives.

Your answer is

x=1

3 0

3 years ago