Can someone help me answer this question.

Answer:

y = ⅗  

Step-by-step explanation:

  3x – 7/y = 1/3     Substitute the value of x

3×4 – 7/y = 1/3

  12 – 7/y = 1/3         Multiply each side by 3

36 – 21/y = 1             Subtract 36 from each side

      -21/y = -35          Multiply each side by y

         -21 = -35y        Divide each side by -35

            y = 21/35      Divide numerator and denominator by 7

            y = ⅗

=====

Check:

3×4 – 7/(⅗) = 1/3

  12 -7×5/3  = 1/3

    12 – 35/3 = 1/3

(36 – 35)/3 = 1/3

               1/3 = 1/3

Answer:

Long Beach, California, tax = 10.25%

5

180°-(90°+68°)=180°-158°=22°

6

180°-22°=158°

Answer:

22° and 158°

Step-by-step explanation:

the sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles in the triangle from 180

∠5 = 180° - (90 + 68)° = 180° - 158° = 22°

∠5 and ∠ 6 form a straight angle, thus the angles are supplementary

∠6 = 180° - ∠5 = 180° - 22° = 158°

Answer:

I believe a) is your answer

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2(x+7)=36

Simplify: (Show steps)

2x+14=36

Answer:

1

Step-by-step explanation:

evaluate the parenthesis before raising to power 66

3² = 9 and 2³ = 8, hence

(3² - 2³)= (9 - 8) = 1

[tex](3^2-2^3)^{66}[/tex] = [tex]1^{66}[/tex] = 1

Answer:

1) Given

2) if lines are parallel, then corresponding angles are equal

3) Substitution

4) if altenate interior angles are equal, then the lines are parallel

x            40

------ = --------

955    100

Cross multiply

955x40=38200

38200÷100=382

u get 382

955 -382= 573

$573

So here are the rules with change by percentage (m = percentage in decimal form, n = original, and r = new):

Since this is a price reduction, we will be following the second rule. In this case:

[tex]40\%=0.4\\\\(1-0.4)*955=r\\0.6*955=r\\573=r[/tex]

In short, the reduced price of the computer is $573.

Answer:

1) [tex]\sqrt{-64}[/tex] is not a real number.

2) [tex]-\sqrt{25} =-5[/tex]

Step-by-step explanation:

1) The square root of a number is defined for real numbers if and only if the number under the square root sign is greater than or equal to zero.

This implies that [tex]\sqrt{-64}[/tex] is not a real number because [tex]-64\:<\:0[/tex]

2) [tex]-\sqrt{25} =-\sqrt{5^2} =-5[/tex].

The number under the square root sign is [tex]25[/tex], which is greater than zero. Note that the negative sign is not inside the square root sign, it is outside it.

The value √-64 is not a real number, and -√25 is a real number.

√-64 and -√25 involve taking the square root of negative numbers, which results in complex numbers because real numbers do not have square roots of negative values.

Let's evaluate both:

√-64:

The square root of -64 is denoted as √(-64). In the realm of complex numbers, it's represented as 8i, where 'i' stands for the imaginary unit. So, √-64 = 8i.

-√25:

The square root of 25 is 5, and when you add a negative sign in front of it, you get -5. So, -√25 = -5.

In summary, √-64 is not a real number, and it is equal to 8i in the realm of complex numbers, while -√25 is a real number and equal to -5.

To know more about real number:

https://brainly.com/question/34292742

#SPJ3

Answer: 24% of all employees attend night school.

Step-by-step explanation: If 40% of all employees are men and 30% of the men attend night school, we can multiply 0.40 by 0.30 to get the percentage of men who attend night school: 12% or 0.12. To find the number of women who attend night school, multiply 0.20 by 0.60(assuming percentage of men and women add up to 100%) to get 12%. Add 12% and 12% to get 24% of all employees attend night school.

Answer:

Income = 637

Step-by-step explanation:

Income = weekly salary + commission

commission = 6.5% * sales

commission = .065* 4800

                     = 312

Income = weekly salary + commission

Income = 325+312

Income = 637

Answer:

D) x = 14

Step-by-step explanation:

x/2 = 7

We want to isolate x

We can multiply by 2 on each side.

2 * x/2 = 7*2

x = 14

Answer:

14

Step-by-step explanation:

Well if you simplify or divide how ever you want to say it, it will be simplified to 7.

Answer:

352 ft is 3.34% of mi ;

2 mi is 3000% of 352 ft

Step-by-step explanation:

To calculate : 352 ft is ___% of 2 mi and 2 mi is ___% of 352 ft.

We can calculate first:

352 is x% of 2 mi.

Solve for x;

Use conversion:

1 mi = 5280 ft

2 mi = 10560 ft

x% of 10560 ft means [tex]\frac{x}{100} \times 10560 = 105.60 x[/tex]

then, our equation become;

352 = 105.6 x

Divide both sides by 105.6 we get;

x = 3.333333...

or

x ≈3.34

Similarly, for

2 mi is y% of 352 ft

Solve for y;

2 mi = 10560 ft

y% of 352 = [tex]\frac{y}{100} \times 352 = 3.52y[/tex]

then;

10560 = 3.52 y

Divide both sides by 3.52 we get;

[tex]y = \frac{10560}{3.52}[/tex]

y = 3000

Therefore; 352 ft is 3.34% of mi ; 2 mi is 3000% of 352 ft

Answer:

1 in 65 chances.

Step-by-step explanation:

Answer:

10 miles

Step-by-step explanation:

Thinking process:

The distance that Maria rides: 4 miles

Total time by Maria = 2.5 hrs

The friend   = 2hrs

Answer:

ITS 1/2

Step-by-step explanation:

Marble's mother requires 1/2 cup of flour .

Proportion is the number which is considered in comparative relation to a whole.

Fraction is  a number expressed as a quotient, in which a numerator is divided by a denominator

According to the problem,

∴ Number of cup of flour that Marble's mother require is 2/3 part of 3/4

                       = (2/3 x 3/4) = 1/2

∴ Marble's mother requires 1/2 cup of flour .

Find out more about "Proportions and Fractions" here : https://brainly.com/question/78672

#SPJ2

Answer:

The answer my frind is D

Step-by-step explanation:

When you divide,

you must

blablabla

The first step in solving the equation 4x - 0.3 = 1.9 is to D) add 0.3 to both sides of equation, isolating the term with the variable 'x'.

The question is asking how to begin solving the equation 4x - 0.3 = 1.9 for the variable x.

This balances the equation and moves us closer to discovering what x is, so the correct option would be 'D. Add 0.3 to both sides of the equation'.

https://brainly.com/question/18322830

#SPJ2

Answer:

Area = 18

Step-by-step explanation:

We know that a square has side lengths of s

We can use the Pythagorean theorem to find s

a^2 + b^2 = c^2

We know that the hypotenuse or c = the length of the diagonal or 6

Substituting in what we know

s^2 + s^2 = 6^2

2s^2 = 36

Divide each side by 2

2s^2/2 = 36/2

s^2 = 18

Take the square root of each side

sqrt(s^2) = sqrt(18)

We only have to take the positive square root since it is a length

s = sqrt(9) sqrt(2)

s= 3sqrt(2)

The side length of the square is 3sqrt(2)

To find the area, we multiply the side  by the side or s^2

s^2 =  (3sqrt(2))^2

From above

s^2 = 18

Answer:

For 46•.029

First you would show how you multiply 9 times six then 9 times 4 then you put it on the bottom

After that you would do 2 times six then 2 four then you put it one space down from the other aanswer and add them

Sorry ignore this if it’s complicated

Step-by-step explanation:

Answer: 81 in. (6.75 ft.) by 60 in. (5 ft.)

First, convert 27 ft. and 20 ft. to inches to make it easier to work with. This would convert like this:

27 ft. x 12 in. = 324 in.

20 ft. x 12 in. = 240 in.

This also means that the scale converts to 1/4 in. = 12 in.

Now, take your 324 in. and 240 in. and apply them to the scale.

For every 12 in. (1 ft.) in the non-scale room dimensions, there will be one 1/4 in. on the scale. That would apply like this:

324 in. (27 ft.) x

1/4 in. =81 in. [or 6.75 ft.]

240 in. (20 ft.) x

1/4 in. = 60 in. [or 5 ft.]

Step-by-step explanation: If incorrect sorry, Hope this helps!!

Answer:

x is all real numbers

Step-by-step explanation:

6 + 5|2x -3| ≥ 4

The first step is to subtract 6 from each side

6 -6+ 5|2x -3| ≥ 4-6

5|2x -3| ≥ -2

Now divide each side by 5

5/5|2x -3| ≥ -2/5

|2x -3| ≥ -2/5

Absolute values are always positive.  Our absolute value is greater than a negative number.  It is always true.  X can be any number and our absolute value will still be greater than -2/5.

x is all real numbers

He is buying one large tree, so subtract the cost of a large tree from the total:

1400 - 200 = 1200

He can spend 1200 on small trees.

Divide 1200 by the cost of a small tree to find how many small trees can be bought:

1200 / 150 = 8

He can buy 8 small trees.

Total number of trees = 8 small + 1 large = 9 total

Answer:

C: 0.25  

Step-by-step explanation:

We will use conditional probability formula to solve our given problem.

[tex]P(B|A)=\frac{P(\text{A and B})}{P(A)}[/tex], where,

[tex]P(B|A)[/tex]= Probability of event B, given probability of event A.

[tex]P(\text{A and B})[/tex]= Probability of event A and event B.

[tex]P(A)[/tex]= Probability of event A.

Let us substitute our given values in conditional probability formula.

[tex]P(B|A)[/tex]= Probability that a student plays a sport given that student is a senior.

[tex]P(\text{A and B})[/tex]=The probability that a student is a senior and plays a sport = 0.05.

[tex]P(A)[/tex]= Probability that a student is a senior = 0.20.

[tex]P(B|A)=\frac{0.05}{0.20}[/tex]

[tex]P(B|A)=\frac{1}{4}[/tex]

[tex]P(B|A)=0.25[/tex]

Therefore, the probability that a randomly selected student plays a sport, given that the student is a senior will be 0.25 and option C is the correct choice.

Answer:

probability that a randomly selected student plays a sport, given that the student is a senior is 0.25

Step-by-step explanation:

Let, A be an event that a student is senior.

Probability can be given as , p(A) = 0.20

B be the event where student plays a sport

Probability can be given as , p(B) = 0.15

We have given that the probability of a student is a senior and plays a sport is 0.05.

i.e p(A∩B) =  0.05

We need to find the probability that a randomly selected student plays a sport, given that the student is a senior i.e p(B/A) .

Use the formula: p(B/A) = p(A∩B) / p(A)

Plug corresponding values to get p(B/A).

p(B/A) = p(A∩B) / p(A)  = 0.05 /0.20

p(B/A) = 0.25 , this is the answer

Based on the information given, it can be concluded that 35% of the circle is shaded, which is equivalent to the fraction 7/20.

To understand what area of the circle is shaded, let's first calculate how much is not shaded:

First area: 1/4 = 0.25

Second area: 2/5 = 0.4

Total of the area that is not shaded: 0.65

The total area shaded: 1 -0.65 = 0.35

This means that the total shaded is 0.35. Now, let's convert 0.35 to a fraction:

[tex]\frac{35}{100} = \frac{7}{20}[/tex]

Based on this, the shaded area is 7/20

Learn more about fractions in https://brainly.com/question/10354322

#SPJ1

The distance between the points (-3,-4) and (5,4) is approximately 11.31 units, and the distance between the points (-3,5) and (0,1) is exactly 5 units.

To find the distance between two points in a plane, you can use the distance formula derived from the Pythagorean Theorem, which is

d² = (x2 - x1)² + (y2 - y1)²

Let's calculate the distances for the given pairs of points.

Distance between (-3,-4) and (5,4)

d² = (5 - (-3))² + (4 - (-4))²

d² = (8)² + (8)²

d = 64 + 64 = 128

d = √128

≈ 11.31

Distance between (-3,5) and (0,1)

d² = (0 - (-3))² + (1 - 5)²

d² = (3)² + (-4)²

d = 9 + 16 = 25

d = √25

d = 5

Answer:

Cauchy problem

Step-by-step explanation:

If you are talking about 'initial value problem', it is when talking about differential equations, an initial value problem is called a Cauchy problem by some authors as well. This is an ordinary differential equation together with a specified value which is called the initial condition. I really hope this helps!

The initial value is also known as the y intercept

The initial value, also known as the y-intercept or constant term, is a fundamental concept in mathematics, particularly in linear equations or functions. It represents the starting point or baseline on a graph, indicating the value of  x is zero.

The y-intercept is where a line intersects the y-axis and serves as a reference for the function's behavior, influencing its direction and movement on the coordinate plane.

Hence we can say that The initial value is also known as the y intercept

Read more on initial value here https://brainly.com/question/10155554

#SPJ3

Step-by-step explanation:

-7(k-8)+2k Use distributive property.

-7k+56+2k Combine like terms.

-5k+56

Mother knows best :)

Answer:

1/4

Step-by-step explanation:

The probability of getting a heads is 1/2

The probability of getting an odd number

1,3,5

-----------   =   3/6  = 1/2

1,2,3,4,5,6  

Since they are independent events, we multiply the probabilities

1/2 * 1/2 = 1/4