Please help me asap with this math problem!
If it's wrong I'ma report it!

Answer:

x = 18/5

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Step-by-step explanation:

Step 1: Define equation

5x + 2 = 20

Step 2: Solve for x

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Here we see that 20 does indeed equal 20.

∴ x = 18/5 is a solution to the equation.

Answer:

a c and d

Step-by-step explanation:

Answer: 2.52Hg

Step-by-step explanation:

First and foremost, we should realize that:

1 moles Mercury = 200.59 gram

Therefore, the number of moles of mercury, Hg is in a sample of 505 grams would be calculated as:

= 505/200.59

= 2.52

Answer:

7x - 8y

Step-by-step explanation:

Lol is this delta math

Probability of not picking up a red marble = 8/15

No of red marbles = 7

No of green marbles = 5

No of blue marbles = 3

Total sample space = 3+7+5 = 15 marbles

Probability of picking out blue marble = 3/15

Probability of picking out red marbles = 7/15

Probability of picking out green marbles = 5/15

Probability of not picking up a red marble  = 1 - 7/15 = 8/15

Learn more about probability:

https://brainly.com/question/11234923

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Answer:

A

Step-by-step explanation:

I hope this is correct and have a great day

Answer:

the answer would be the one with 25x+1,852=2,972

Step-by-step explanation:

please mark brainliest

Answer:

J

Step-by-step explanation:

Theres no explanation. I just did it in my head and none of the other answers made sense so its gotta be J :')

Answer:

sure

Step-by-step explanation:

Answer:

[tex]2^{21}[/tex]

Step-by-step explanation:

[tex](a^{m} )^{n}[/tex] = [tex]a^{mn}[/tex]

[tex](2^{7})^{3}[/tex] = [tex]2^{21}[/tex]

Answer: 128^3 or 2097152

Step-by-step explanation: maybe mark me brainliest? your choice! have a good day

Answer:

the answer to that question is D

Answer:

its C

Step-by-step explanation:

[tex]Answer:\ S=96\sqrt[4]{x^9}[/tex]

Step-by-step explanation:

[tex]\displaystyle\\(4x)^\frac{3}{2}=\\\\ (2^2x)^\frac{3}{2} =\\\(2^2)^\frac{3}{2} x^\frac{3}{2} =\\\\2^\frac{2*3}{2} x^\frac{3}{2} \\\\2^3x^\frac{3}{2}=\\\\8x^\frac{3}{2}[/tex]

Thus,

[tex]S=8x^\frac{3}{2} *12x^\frac{3}{4}\\\\ S=8*12x^{\frac{3}{2} +\frac{3}{4}} \\\\S=96x^\frac{3*2+3}{4} \\\\S=96x^\frac{6+3}{4} \\\\S=96x^\frac{9}{4} \\\\S=96\sqrt[4]{x^9}[/tex]

Answer:

3

Step-by-step explanation:

3-9=-6 but absolute is 6

Answer:

Im guessing 4

Step-by-step explanation:

or if the number is 2 the answer is 6

Answer:

5089.4cm³ (rounded to 1 d.p.)

Step-by-step explanation:

Volume of cylinder = [tex]\pi[/tex] × r² × h

Volume of cylinder = [tex]\pi[/tex] × 9² × 20

                                = 1620[tex]\pi[/tex]

                                = 5089.4cm³ (rounded to 1 d.p.)

The value of X for carlon evaporate is 36. 

A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

A linear equation is an algebraic equation of the form y=mx+b involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept. Occasionally, the above is called a "linear equation of two variables," where y and x are the variables.

Given that

Total amount of solution = 90          

total amount of salt = 15 % of 90

                                             = [tex]90 \times \frac{15}{100}[/tex]

                                             = 13.5        

Now removed X from the solution

Then, remaining solution is 90 - X

Percentage of salt in the remaining solution [tex]= \frac{salt}{remaining solution}[/tex]

Given that , % of salt in the remaining solution is equal to 25% then, Percentage of salt in the remaining solution

⇒ [tex]\frac{salt}{remaining solution}[/tex] = 25%

⇒ [tex]\frac{13.5}{90 - X} = \frac{25}{100}[/tex]

⇒1350 = 2250 - 25 x

⇒ 25 x =  2250 - 1350            

⇒ 25 x =  900          

⇒ x = [tex]\frac{900}{25}[/tex]          

⇒ x =36

Learn more about percentage problems here: brainly.com/question/28269290

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Answer:

49.6 minutes to create 308 bolts

Step-by-step explanation:

hope this helps :)

Answer:

 its 83

Step-by-step explanation:

Answer:

Answer the first choice.

Step-by-step explanation:

Given

Points (-2,6) and (0,2)

y2 = 6

y1 = 2

x2 = - 2

x1 =0

m = (y2 - y1)/(x2 -x1)

Solution

m = (6 - 2)/(-2 - 0)

m = 4 / - 2                 <<<< ===== Answer..

m = - 2

Remark

If you know what the formula to use is, it always helps to write down your givens. The solution is much easier.

Answer:

87.5 inches long

Step-by-step explanation:

250 x 0.35 = 87.5

Answer:262.5

Step-by-step explanation:

all i did was just subtract 35% from 250 and it is 262.5in

hope this helps

Answer:

1

Step-by-step explanation:

x^5 when x = -1 will be -1 because -1^5 = -1

-1 * -9 will equal 9

1/3^2 = 1/9

1/9*9 = 1

Answer:1

Step-by-step explanation:

The fraction is [tex]\frac{3}{5}[/tex]

Let's take the fraction as [tex]\frac{a}{b}[/tex]

According to the first statement,

If we add 1 to the numerator and subtract 1 from the denominator a fraction reduces to 1.

[tex]\frac{a + 1}{b - 1}[/tex] = 1

a + 1 = b -1

a + 2 = b

b = a + 2........(1)

According to the second statement

If we only add 1 to the denominators, it becomes 1/2.

[tex]\frac{a}{b+1}[/tex] = 1/2

2a = b + 1

b = 2z -1 .........(2)

Equating both the equation (1) and (2)

2a - 1 = a + 2

2a - a = 2 + 1

a = 3

Now substitute the value of a in equation (1)

b = 3 + 2

  = 5

Therefore the fraction is [tex]\frac{a}{b}[/tex] = [tex]\frac{3}{5}[/tex]

To know more about the Fraction refer to the link given below:

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Answer:

straight line that passes through the origin

Step-by-step explanation:

Two variables are said to have a direct variation or proportional relationship if it can be represented by y = kx, where k is a constant.

Comparing this with the equation of a straight line y = mx + b, where m is the slope of the line and b is the y intercept (value of y when x = 0), We can tell if the say that the graph of a direct variation or proportional relationship is a straight line with no y intercept (b = 0, that is it passes through the origin).

Answer:

I belive it is 'A'  9

Step-by-step explanation:

because the square root is 8.66025404 so that rounded to the nearest integer would be 9

Answer:

A

Step-by-step explanation:

the answer is option A as

6x + 12x = 90

so 6x + 12x + 90 = 90 + 90 + 180

Answer:

180psi

Step-by-step explanation:

Step one:

given data

P1= 900 psi

T1= 350°C

P2=?

T2=70°C

Required

The final pressure P2

Gay-Lussac's Law: The Pressure Temperature Law. This law states that the pressure of a given amount of gas held at constant volume is directly proportional to the Kelvin temperature. With an increase in temperature, the pressure will go up

Applying the expression

P1/T1= P2/T2

substitute:

900/350= P2/70

2.57=P2/70

cross multiply

P2= 2.57*70

P2=180psi

Answer:

1. 3

2. f(3) = (3)^3 - 3(3)^2 +2(3)-6; f(3) = 0

3. (x^2+2)(x-3)

4.) 3, iradical(2), -iradical(2)

5.) (x-3)(x^2+2)

Step-by-step explanation:

I'm not very sure about number 5.

Answer:

Not proportional

Step-by-step explanation:

3/6=1/3

14/28=1/2

16/32=1/3

17/34

Answer:

x= -2/9

Step-by-step explanation:

2(x-2)/5=4x

2(x-2)=4x*5

2(x-2)=20x

x-2=20x/2

x-2=10x

-2=10x-x

9x= -2

x= -2/9