How many quarts of water must be added to 7 qts of a 19% saline solution to obtain a 5% saline solution?

Answers

Answer 1

Answer: quantity of water added = 19.6 quarts

Step-by-step explanation:

Let x= quantity of water added

Then, Quantity of saline in 7 quarts solution  = 19% of 7 = 0.19 (7)=1.33 quarts [to remove % divide number by 100]

When x quarts water is added , the quantity of solution becomes = x+7

Quantity of saline in it= 5% of (x+7)= 0.05(x+7)

Now, quantity of saline remains same, so

[tex]1.33= 0.05(x+7)\\\\\Rightarrow\ 1.33x=0.05x+0.35\\\\\Rightarrow\ 1.33-0.35=0.05x\\\\\Rightarrow\ x=\dfrac{0.98}{0.05}=19.6[/tex]

Hence,  quantity of water added = 19.6 quarts


Related Questions

Simplify using Quotient
Rule
10^12 OVER 10^8

Answers

Answer:

[tex]10^4[/tex]

Step-by-step explanation:

All you have to di is subtract the exponents.

Find the smallest value of p
such that 36p is a perfect cube.​

Answers

Answer:1

Step-by-step explanation: 36(1)=36 and the square root of 36 is 6

6x6=36

Answer:

1

Step-by-step explanation:

5.1 x 10
Please help​

Answers

Easy it’s 51 bc when u multiply by 10 the decimal point will move

Answer:

51

Step-by-step explanation:

Because 5.1 times ten equals 51 because if you times ten by 5 u get 50 and then do .1 times ten you get 1

What is the slope of a line parallel to the line whose equation is: -2x + y = - 7?

Answers

Answer:

2

Step-by-step explanation:

-2x+y=-7

Take the -2x and put it on the other side of the equation by changing the sign

y=-7+2x

Now put it in y intecpet form by putting the 2x first

y=2x-7

Slope is the number before the x.

so 2

Now knowing that parallel lines always have the same slope the answer is 2

80 = 2 (8 + a)
HELP MEEEE

Answers

(8+32=40) 40*2 is 80 so your answer is 32

Christopher was out at a restaurant for dinner when the bill came. To find the total plus tip he multiplied the cost of the meal by 1.22. what percent tip did he leave?​

Answers

Answer:

75%

Step-by-step explanation:

Express this number in scientific notation.
0.0096

Answers

Answer:

9.6*10^negative 3

Step-by-step explanation:

Move the decimal place over 3 times to the right which gives you 9.6. Since you went to the right it would have to be negative 3. So 9.6*10^-3

What will be the equation of a line that is
parallel to y=-X+6 and passes through the
point (-3,1)

Answers

Answer:

y=x+4

Step-by-step explanation:

Solve with the point-slope formula: y-y1=m(x-x1). The line is parallel; both slopes are equivalent. Plug in the coordinates we have into the formula, along with the slope from the original equation (-1). To check, we can plug the coordinates back into the equation.

y-(1)=-1(x+3)

y-1=x+3

y=x+4

Check:

(1)=(-3)+4

1=1

You put $800 in a savings account. The account earns 6%
simple interest. How much interest will be earned after 4
years?​

Answers

Answer:

992

Step-by-step explanation:

1. 800/1 x 6/100 = 48 x 4 = 192 +800 = 992

2. 6 x 4 =24

800/1 x 24/100 = 192 + 800 = 992

Michael’s family was traveling to visit prospective colleges. They drove to the closest college that interested him, took a tour, and then drove to another college a little farther from home. The graph shown represents this situation.

Answers

Complete Question:

Michael's family was traveling to visit prospective colleges. They drove to the closest college that interested him, took a tour, and then drove to another college a little farther from home. The graph shown represents the situation.

Part A:

Enter a number in search box to complete the domain and range.

Domain ___ ≤ x ≤ ___

Range ___ ≤ y ≤ ___

Part B:

Is the statement, "the graph is continuous", true or false?

Answer:

Part A:

Domain: 0 ≤ x ≤ 5

Range: 0 ≤ y ≤ 300

Part B: True

Step-by-step Explanation:

Part A:

The domain of the function represented on the graph includes all values x plotted in the x-axis, which represents the time (hrs) travelled during the tour.

The domain is [0, 5]. The journey started at 0 mins and ends at 5 mins.

Domain can be represented as 0 ≤ x ≤ 5

The range of the function includes all values on the y-axis of the function that are plotted on the graph. The range is the set of distance covered from from during the tour.

Range is [0, 300].

This can be represented as 0 ≤ y ≤ 300.

The maximum point is at the point on the graph, when x = 5, and y = 300. This implies that it took them 5 mins to cover 300 miles during the tour.

Part B:

The graph is continuous because the line of the graph has no breaking point from start to finish.

The statement is true.

Convert 0.79 km to m.

Answers

Answer:

790

Step-by-step explanation:

Yaa baby

Who’s is a graph Line with a negative slope and positive y-intercept

Answers

Answer:

The second one

Step-by-step explanation:

the us air force has 19 women for every 81 men enlisted.what is the ratio of men to women

Answers

Answer: 81 to 19

Step-by-step explanation:

sorry if you can’t see BUT PLEASE HELP IM TIMED AND MY TEACHER IS GOIGN TO SUBMIT IT PLS ANSWER ONE BY ONE

Answers

Answer:

7.) a. 84 hundredths

8.) 6(.36)= 2.16 meters

9.) 9.40÷4= 2.34 meters

I cant see 10 clearly

11.) No because if you multiply 2×4 you get 8 so .814 wouldn't be reasonable

can someone explain this??

Answers

Answer:mark me a brainiest pls

that is a linear function search it up on Google youl get the answer from there

The larger of two numbers is 15 less than two times the smaller number. If the sum of the two numbers is 63, find the LARGER number.

Answers

Answer:

Let x = the smaller number

Let 3x + 15 = the larger number

x + 3x + 15 = 63

4x = 48

x = 12

3(12) + 15 = 51

Step-by-step explanation:

I hope this helps

Select all that apply.

Which of the following name an angle in the drawing?

Answers

Answer:

ECB

ACB

CDE (if it doesn't matter what order the letters are in)

Step-by-step explanation:

Please someone help me solve this!! <33

Answers

Answer:

Jedi light saber: 6 ftDarth light saber: 5 ft

Step-by-step explanation:

Given

a = 37b = 63c = 16

Find

  The length of each light saber, rounded up to the nearest foot.

Solution

The attached scale drawing shows the triangles with the angles and sides filled in.

The angle at the Jedi's hand is 2a = 2(37°) = 74°. If L represents the Jedi's light saber length, then the cosine relation is useful:

  Cos = Adjacent/Hypotenuse

  cos(74°) = (1.4 ft)/L

  L = (1.4 ft)/cos(74°) ≈ 5.08 ft

Rounded up to the nearest foot, the Jedi's light saber is 6 ft long.

__

The angle at Darth's hand is ...

  5c = 5(16°) = 80°

and the length of the opposite side is ...

  b/14 = 63/14 = 4.5 . . . feet

The sine relation is useful here. If L represents Darth's light saber length, then ...

  Sin = Opposite/Hypotenuse

  sin(80°) = (4.5 ft)/L

  L = (4.5 ft)/sin(80°) ≈ 4.57 ft

Rounded up to the nearest foot, Darth's light saber is 5 ft long.

-4(–7m – 10m – 4) – 2m

Answers

Answer:

Im assuming you need to simplfy as far as you can so

Step-by-step explanation:

-4 ( -17m -4 ) - 2m

distribute

68 m + 16 -2m

combine like terms

66m + 16

Answer: 66m + 16

Step-by-step explanation:

find the values of x and z.​

Answers

Answer:

x = 2

z = 93°

Step-by-step explanation:

set the top and bottom equations equal to each other...

5x + 77 = 9x + 69, solve for x...

subtract 69 and 5x from both sides...

8 = 4x

divide both sides by 4...

x = 2

substitute 2 for x in either equation...

5(2) + 77 = 87°

subtract 87 from 180...

180° - 87° = 93°

z = 93°

The point-slope form of a line that has a slope of , and passes through the point (3, 0) is shown.
y-0 =3(2-3)
What is the equation in slope-intercept form?

Answers

Answer:

y= -3

Step-by-step explanation:

[tex]y-0 =3(2-3)[/tex]

Expand ; 3(2-3) = 6-9

[tex]y-0=6-9\\\\Simplify\\\\y-0=-3\\y =-3+0\\\\y =-3[/tex]

which property is used in solving y+3=11

Answers

distrubutive property

because you'll have to distribute the in inverse integer in the right and on the left .

Solve for the value of z. (z+2)° (4z-7)°​

Answers

Answer:

Z=0.8

Step-by-step explanation:

Step-by-step explanation:

Combine the opposite terms

2z+2+4z=7

Add

2z and 4z

6z+2=7

Move all terms not containing z to the right side of the equation.

Subtract 2 from both sides of the equation.

6z=7−2

6z=5

Divide each term:

6z/6 = 5/6

Decimal Form:

z=0.8

PLEASE ANSWER THIS FOR ME!!
If 12 = 17 - 5, then 17 - 5 = 12 What math property is this?

Answers

Answer:

Symmetric property of equality

Step-by-step explanation:

The symmetric property of equality states values are still equal no matter which side of the equal sign they're on.

What is 0.20 as a fraction?

Answers

That is 2/10 which is also simplified to 1/5. Hope this helps you

Hello. What are the vertices, foci, endpoints of the conjugate axis, and the equation of the asymptote of 7x^2-9y^2-14x+72y-200=0?

Answers

Answer: is ( 1,4 )

Step-by-step explanation:

What is the LCM for (x + 3)2(x – 2) and (x + 3)(x2 – 16)? A. (x + 3) B. (x + 3)(x – 2)(x – 16) C. (x + 3)3(x – 2)(x2 + 16) D. (x + 3)2(x – 2)(x2 – 16)

Answers

Answer:

2(x-2)(x+3)(x-8)

Step-by-step explanation:

The LCM of [tex](x+3)^2(x-2)[/tex] and [tex](x+3)(x^2-16)[/tex] is x + 3

Option A is correct

The task is to find the LCM of the expressions:

[tex](x+3)^2(x-2)[/tex] and [tex](x+3)(x^2-16)[/tex]

Note that:

[tex](x^2-16)=(x-4)(x+4)[/tex]

Therefore, the expression [tex](x+3)(x^2-16)[/tex] will become:

[tex](x+3)(x-4)(x+4)[/tex]

By considering the expressions [tex](x+3)^2(x-2)[/tex] and [tex](x+3)(x^2-16)[/tex], it is observed that x + 3 is common to both expressions.

Therefore, the LCM of [tex](x+3)^2(x-2)[/tex] and [tex](x+3)(x^2-16)[/tex] is x + 3

Learn more on LCM here: https://brainly.com/question/13066728

solve for c a(c-b)=d​

Answers

Answer:

[tex]c=\frac{d + ab}{a}[/tex]

Step-by-step explanation:

Step 1: Write equation

[tex]a(c-b)=d[/tex]

Step 2: Solve for c

Distribute a: [tex]ac-ab=d[/tex]Add ab to both sides: [tex]ac=d + ab[/tex]Divide both sides by a: [tex]c=\frac{d + ab}{a}[/tex]

Answer:

c=d+ab/a

Step-by-step explanation:

a( c-b)= d

ac - ab= d

   +ab    +ab

ac= d-ab

/a      /a

c= d+ab/a

What the answer to f(x)=3x-1
G(x)=x^2-x-4
Findf(g(x)

Answers

Answer:

honestly i think its 2f=9x

Step-by-step explanation:

might not be 2f=9x but make sure to chexk your answer

1. What is the value of w?

Answers

Answer:

14 is the value

Step-by-step explanation:

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