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gayaneshka [121]

3 years ago

13

How do u do this and whats the awnser

1 answer:

Verdich [7]3 years ago

4 0

[email protected]@*@&>;@*@;!(`-(!`@>@;*#

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One container is filled with mixture that is 25% acid. A second container is filled with a mixture that is 55% acid. The second

algol13

Answer:

Therefore the third container contains $\frac{735}{17}\%$ = 43.23 % acid.

Step-by-step explanation:

Given that, One container is filled with the mixture that 25% acid. 55% acid is contain by second container.

Let the volume of first container be x cubic unit.

Since the volume of second container is 55% larger than the first.

Then the volume of the second container is

$= (V\times \frac{100+55}{100})$ cubic unit.

$=\frac{155}{100}V$ cubic unit.

The amount of acid in first container is

$=V\times \frac{25}{100}$ cubic unit.

$=\frac{25}{100}V$ cubic unit.

The amount of acid in second container is

$=(\frac{155}{100}V \times \frac{55}{100})$ cubic unit.

$=\frac{8525}{10000}V$ cubic unit.

Total amount of acid $=(\frac{25}{100}V+\frac{8525}{10000}V)$ cubic unit.

$=(\frac{2500+8525}{10000}V)$ cubic unit.

$=(\frac{11025}{10000}V)$ cubic unit.

Total volume of mixture $=(V+\frac{155}{100}V)$ cubic unit.

$=\frac{100+155}{100}V$ cubic unit.

$=\frac{255}{100}V$ cubic unit.

The amount of acid in the mixture is

$=\frac{\textrm{The volume of acid}}{\textrm{The amount of mixture}}\times 100 \%$

$=\frac {\frac{11025}{10000}V}{\frac{255}{100}V}\times 100\%$

$=\frac{735}{17}\%$

Therefore the third container contains $\frac{735}{17}\%$ acid.

5 0

3 years ago

What would x and y be in this equation 4x - 5y =7

vekshin1

x-intercept:

(-7/4 , 0)

y-intercept:(0 , 7/5)

6 0

3 years ago

The value of x is a third of the value of 45-10x

Mnenie [13.5K]

Answer:

x = 45/13, also x = 3 6/13

Step-by-step explanation:

is = equal sign

of = multiply

<u>Equation:</u>

$x = 1/3 (45-10x)$

To do this, you could easily do communitive property of multiplication, but to make it more understandable I will use reversing.

1. Simplify. Multiply - Divide.

$x=\frac{45-10x}{3}$

2. Factor out common term 5.

$x=\frac{5(9-2x)}{3}$

3. Multiply both sides by 3.

$3x=5(9-2x)$

4. Expand.

$3x=45-10x$

5. Add <em>10x</em> to both sides.

$3x+10x=45$

Simplify. <em>3x + 10x = 13x.</em>

$13x=45$

Divide both sides by 13.

$x= \frac{45}{13}$

Mixed Number = $x=3\frac{6}{13}$ .

You can also use distributive property. The formula for this problem is: $(\frac{1}{3} * 45) - (1/3*10x)$ .

4 0

3 years ago

The ratio of teachers to students at a school is 3:74. There are 2,500 students at the school. About how many teachers are at th

Alinara [238K]

   Teachers / Students = 3 / 74

      Teachers / 2,500 = 3 / 74

To solve a proportion,
you cross-multiply: Teachers x 74 = 2,500 x 3

Divide each side by 74 : Teachers = 2,500 x 3 / 74

= 101.4 ===> 101 teachers

7 0

3 years ago

Please HELP ME PLEASE PLEASE PLEASE PLEASE

Lubov Fominskaja [6]

Answer:

10: 35

70: 245

2: 7

1: 3.5

5: 17.5

4 0

3 years ago

Read 2 more answers