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3 years ago

10

If 2/15 is 40 then 1/15 is?

1 answer:

Stells [14]3 years ago

8 0

Answer:

20

Step-by-step explanation:

$\frac{2}{15}$ = 40

$\frac{2}{15}$ ÷ $\frac{2}{1}$ = $\frac{1}{15}$

40 ÷ $\frac{2}{1}$ = 20

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NARA [144]

put your question properly

Step-by-step explanation:

4 0

3 years ago

When completing the square on the equation c2 + 110 = 12, the resulting solution is:<br> It

Delvig [45]

Answer:

$c=1$ and $c=-12$

Step-by-step explanation:

The correct equation is:

$c^2+11c=12$

To solve by completing the square method.

Solution:

We have:

$c^2+11c=12$

In order to solve by completing the square method we will carry out the following operations to the given equation to get a perfect square binomial.

We can write as:

$c^2+2.\frac{11}{2}c=12$

$c^2+2.\frac{11}{2}c+(\frac{11}{2})^2-(\frac{11}{2})^2=12$

$(c+\frac{11}{2})^2-(\frac{11}{2})^2=12$ [As $c^2+2.\frac{11}{2}c+(\frac{11}{2})^2=(c+\frac{11}{2})^2$ ]

Adding both sides by $(\frac{11}{2})^2$

$(c+\frac{11}{2})^2-(\frac{11}{2})^2+(\frac{11}{2})^2=12+(\frac{11}{2})^2$

$(c+\frac{11}{2})^2=12+\frac{121}{4}$

Taking LCD to add fraction.

$(c+\frac{11}{2})^2=\frac{48}{4}+\frac{121}{4}$

$(c+\frac{11}{2})^2=\frac{169}{4}$

Taking square root both sides.

$\sqrt{(c+\frac{11}{2})^2}=\sqrt{\frac{169}{4}}$

$c+\frac{11}{2}=\pm\frac{13}{2}$

Subtracting both sides by $\frac{11}{2}$ :

$c+\frac{11}{2}-\frac{11}{2}=\pm\frac{13}{2}-\frac{11}{2}$

$c=\pm\frac{13}{2}-\frac{11}{2}$

So, we have:

$c=\frac{13}{2}-\frac{11}{2}$ and $c=-\frac{13}{2}-\frac{11}{2}$

$c=\frac{2}{2}$ and $c=\frac{-24}{2}$

$c=1$ and $c=-12$ (Answer)

6 0

4 years ago

Please helppp<br> solve for y

erastovalidia [21]

Answer: $y=\frac{-x}{w-3}$

Step-by-step explanation:

To solve for y, we want to isolate y.

$w=\frac{3y-x}{y}$ [multiply both sides by y]

$yw=3y-x$ [subtract both sides by 3y]

$yw-3y=-x$ [factor out y]

$y(w-3)=-x$ [divide both sides by (w-3)]

$y=\frac{-x}{w-3}$

Now, we know that $y=\frac{-x}{w-3}$ .

5 0

3 years ago

11 less than three times a number is the same as 75 less than the product of-1 and the number

algol13

Answer:

16

Step-by-step explanation:

6 0

3 years ago

What is<br> 51=3x<br> Please help me

damaskus [11]

Answer:

17 = x

Step-by-step explanation:

51 = 3x

~Divide 3 to both sides

17 = x

Best of Luck!

3 0

3 years ago

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