How many liters of a 50% acid solution must be mixed with a 30% acid solution to get 180 L of a 40% acid solution?
____ liters of a 50% acid solution must be used.

Hope it helps you! ........

Answer:

Step-by-step explanation:

3(x + 8)

3x + 24

That's all I got. The image is so blurry that I am uncertain how to proceed.

If you are able to describe what the image says, I can definitely answer the question

Answer:

169.65 cm^3

Step-by-step explanation:

Answer:

the answer is 15.

Step-by-step explanation:

you find the answer by turning 25% into 0.25 then you multiple it by 60, this results in 15.

Answer:

x ≈ 47°

Step-by-step explanation:

Using the sine ratio in the right triangle

sinx° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{8}{11}[/tex] , then

x = [tex]sin^{-1}[/tex] ([tex]\frac{8}{11}[/tex] ) ≈ 47° ( to the nearest degree )

Answer:

115

Step-by-step explanation:

The number of students that  should the teacher predict will participate in the program is option C. 108 students

Since 15% of the students would be interested in a summer creative writing program and there are 720 students

So, the number of students should be

= 15% of 720

= 108

Therefore, The number of students that  should the teacher predict will participate in the program is option C. 108 students

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Answer:

The answer is 37.6 degrees

Step-by-step explanation:

Since a right angle is 90 degrees in total, to find the missing degree subtract 52.4 from 90 to find the value of x.

90-52.4= 37.6 degrees

37.6 degrees is your answer  

Hope this helps

Answer: HOW AM I SUPPOSED TO KNOW?!

Step-by-step explanation:

Answer:

38%

Step-by-step explanation:

If you convert the fraction to a decimal (0.375), and then multiply it by 100, you should get 37.5, which is the exact percentage.

37.5%

  ↓

38.0%

Your answer should be 38%.

[NOTE: 5 always rounds up]

Answer:

72

Step-by-step explanation:

all we have to do, is subsitute 8 whenever we see an x in the equation

x(17-x)

8(17-8)

8(9)

=72

Answer:

QUESTION:

If x = 8, what is the value of x(17 - x)?

ANSWER:

x( 17 - x) = ?

8( 17 - 8) = ?

8 X 17 = 136

8 X (-8) = -64

Final answer:

136 - 64 = 72

Step-by-step explanation:

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Answer:

I really dont know

Step-by-step explanation:

Answer:

Would like to know where the functions are. Please help

Answer:

D

Step-by-step explanation:

You know the second tick mark is one half, and for that you can conclude the third one as 3/4. 3/4=6/8. 1=8/8. therefore it is 7/8.  

Answer:

D, π

Step-by-step explanation:

It is because you cannot write π in the form of a/b

Answer:

190,000

60,000 x 3 = 180,000 and add 10,000

Answer:

260.0234 cm

Step-by-step explanation:

The formula for area of a circle is π r².

Since the radius is half of the diameter, we must divide the diameter by 2.

18.2/2 = 9.1

Next, we must multiply 9.1 x 9.1.

This gives us 82.81

Now we must multiply 82.81 by pi (3.14).

82.81 x 3.14 = 260.0234

Therefore, the area of the circle is 260.0234.

Answer:

V = 282.74

Step-by-step explanation:

V = π r^2 h = π·32·10 = 282.74334

Answer:

the answer is 30

Step-by-step explanation:

*See attachment for the diagram

Answer:

Tan 60 = √3

Step-by-step explanation:

Recall: SOHCAHTOA

Thus,

Tan 60 = Opp/Hyp

From the diagram given,

Opp = YZ = ?

Hypotenuse = XY = 42

Find the length of YZ using Pythagorean Theorem:

YZ = √(42² - 21²) = √1,323

YZ = √(441 × 3) = 21√3

✔️Find Tan(60):

Tan 60 = Opp/Hyp = YZ/XY

Tan 60 = (21√3)/21

Tan 60 = √3

Answer:

Tan 60 = √3

Explanation:

Trust!

Hope this helps! :)

Answer:

A: (10k+m)(10k−m)

Step-by-step explanation:

Answer:

The correct answer is B

Step-by-step explanation:

Both of their medians are equal and Ami's range is larger than Lolo's range :)

The medians are equal, and the range of Ami’s scores is greater than the range of Lolo’s scores

Option B is the correct answer.

It is the middle value of the given set of numbers after arranging the given set of numbers in order.

We have,

Lolo's quiz:

Scores: 12, 13, 13, 14, 14, 14, 15, 16, 16, 17, 17, 19

Median.

= (14 + 15)/2

= 14.5

Range,

= 19 - 12

= 7

Ami's score:

Scores: 10, 12, 12, 13, 13, 14, 15, 16, 17, 17, 18, 18

Median.

= (14 + 15)/2

= 14.5

Range.

= 18 - 10

= 8

We can say that,

The median is the same for both and Ami's range is greater than Lolo's.

Thus,

The medians are equal, and the range of Ami’s scores is greater than the range of Lolo’s scores

Learn more about median here:

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Answer:

43.8%

Step-by-step explanation:

39/89

The solution is, Figure a is a half sphere and figure b is a cylinder.

In geometry, a shape can be defined as the form of an object or its outline, outer boundary or outer surface. Everything we see in the world around us has a shape.

here, we have,

from the given figure, we have,

the given shape has two parts,

the upper half is a half sphere.

Hemisphere includes the prefix hemi-, meaning "half". The northern and southern hemispheres are divided by the equator, the circle halfway between Earth's two poles. The eastern and western hemispheres aren't divided so exactly, since there are no poles in the Earth's east-west dimension.

and, the part b is a cylinder.

A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder.

Hence, The solution is, Figure a is a half sphere and figure b is a cylinder.

learn more on shape:

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Answer:

b 5/12

Step-by-step explanation:

Answer:

Total 2*2*3 = 12 outcomes

------------------------------------------------------------------------

                                 >  thick, white, pepperoni  

                 White  >  >  thick, white, cheese          

                                 >  thick, white, vegetarian

Thick  > >

                                 > thick, red, pepperoni  

                   Red  >   >  thick, red, cheese

                                 > thick, red, vegetarian

------------------------------------------------------------------------

                                 > thin, white, pepperoni

                  White  >  > thin, white, cheese

                                  > thin, white, vegetarian

Thin  > >

                                > thin, red, pepperoni

                   Red  >  >  thin, red, cheese

                                >  thin, red, vegetarian

Answer:

88.67

Step-by-step explanation:

We know that a triangle's angles adds up to 180 degrees.We can make a equation: x+15+32+2x=180

x=44.3

Don't forget to times 2 to get L

Then L equals 88.67.

Answer:

-14x

Step-by-step explanation:

To put in simple terms, this question is asking what -2x+-12x is. To solve this you must add -2 and -12. So... -2+-12=-14. Then add the one "x" at the end.

Answer:

482895ft^2

Step-by-step explanation:

Given data

Width= 657ft

Length= 735ft

We know that area A

A= Length* Width

A=657*735

A= 482895ft^2

Hence the area is 482895ft^2

Step-by-step explanation:

AB = X

AC² = AD × AB

60² = 36 × AB

3600 = 36 × AB

AB = 3600/36

AB = 100

So, if AB = X then the value of X is 100.