What number equal to 48

The values for the variables 'x' and 'y' are (3,7).

According to the question, to calculate the value of 'x' and 'y' then equate both the equations.

The given expressions are:

Equation (1): x + (1/7)y = 4 ⇒ 7x + y = 28

Equation (2): y = 3x - 2

Solving equation (1) and equation (2) by substituting the value of the 'y':

Therefore, 7x + 3x - 2 = 28 ⇒ 10x = 30 ⇒ x = 3

Now: y = 3(3) - 2 = 7

Hence, the values are: x = 3 and y = 7.

What is simplification?

Simplification of an expression can be defined as by making the complicated expression as less complicated. And through this method, it become easy to solve it and find the correct answer.

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Write an equation of the line with the given slope and y -intercept. Use slope-intercept form. Then rewrite the equation in standard form. m=3, b=-7

How to write the equation in slope-intercept form?

Given:

m=3(slope)

b=-7(y -intercept)

The slope-intercept form is given by,

y=mx+b

y=3x-7

Thus, y=3x-7 is the slope-intercept form.

How to rewrite the equation in standard form?

Standard form is given by,

Ax+By=C

Since, slope-intercept form is y=3x-7

⇒3x-y=7

Thus,3x-y = 7  is the standard form.

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Answer: yes it is a solution

The possible dimensions ( width and length) plot of land are 9.5 m and 19 m.

A rectangle is a confined two-dimensional structure with four sides, four corners, and four right angles (90°). A rectangle's opposite sides are equal as well as parallel.

Area of a rectangle

area of rectangle = l×w

where, l = length and w = width.

Thus, the perimeter for 2 side of width and 1 side of length is;

perimeter = 2w+ l

Perimeter of river = 38 m.

38 = 2w + l

l = 38  - 2w

Hence, Put the value of l in the area.

area = w(38 - 2w)

The area of the land is 140 sq.m.

140 = 38w - 2w²

-2w² + 38w - 140 = 0

-w² + 19w - 70 = 0

The equation is in the form of quadratic. Thus use the relation of coefficients and the roots to evaluate the width.

w = - b / a

Comparing the coefficients;

where,

a = -1

b = 19

w = - 19 / 2( -1)

w = 9.5 meters

Then,

l = 38  - 2w

l = 38 - 2(9.5)

l = 19 meters

Therefore, the dimensions of the plot of land are 9.5 meters and 19 meters.

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Answer: (3, 5]    

Step-by-step explanation:

3w-3<=12 and 2w-1>5

3w-3+3<=12+3 and 2w-1+1>5+1

3w<=15 and 2w>6

3w/3<=15/3 and 2w/2>6/2

w<=5 and w>3

3<w<=5 ==> (3, 5]    

Parentheses are notated for non-inclusion(3 isn't included in the solution) and brackets are notated for inclusion(5 is included in the solution).

Answer:

84 Meters^3

Step-by-step explanation:

Since this is a three dimensional object, you need to have an exponent of 3

Vertically Stretching and Compressing

Multiplying a function by positive constant yields a function whose graph is vertically stretched or compressed relative to the original function's graph. If the constant is greater than 1, it will stretch vertically. If the constant is between 0 and 1, vertical compression is done. You get vertical compression.

Vertical compression occurs when you multiply the function by a rational scaling factor. The base of the function graph remains the same even when the graph is compressed vertically. Only initial values ​​are affected.

Reflect across the x-axis Vertically stretch a factor of 3/2

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Answer:5/25,25, 0.3

Step-by-step explanation:

Answer:

5/25 , 25% , 0.3

Step-by-step explanation:

first let's change everything into decimals

0.3 is already a decimal

25% can be changed into 0.25

5/25 can be changed into a percentage first like 25%

so:

[tex]\frac{5}{25}[/tex] × [tex]\frac{4}{4}[/tex] (you multiply both sides by 4 because you need to have the denominator as a 100 and 25 x 4 = 100)

[tex]\frac{5}{25}[/tex] × [tex]\frac{4}{4}[/tex]  = [tex]\frac{20}{100}[/tex]

this means that the percentage is 20% now lets change that into a decimal like we did with 25% earlier:

20% = 0.20

we can then order everything from least to greatest:

0.20 , 0.25 , 0.3

or

5/25 , 25% , 0.3

Answer:

10

Step-by-step explanation:

10 because there is 40 squares

40/4=10

Answer:

(10 *sin(81))/sin(34)=17.66>>>17.7

Answer:

f(- 2) = 14

Step-by-step explanation:

substitute x = - 2 into f(x)

f(- 2) = 3(- 2)² + 2 = 3(4) + 2 = 12 + 2 = 14

If Morgan, Phil, Callie, and Tyreese are sitting on the side of a pool in that order. the probability that 0scar sits between Morgan and Phil is 2/9 and the probability that Oscar sits between Phil and Tyreese is 7/9.

a.  0scar sits between Morgan and Phil

First step is to calculate the total distance

Total distance=2 feet+4 feet+3 feet

Total distance=9 feet

Since Morgan is 2 feet from Phil.

Hence,

P(Oscar sits between Morgan and Phil)=2/9

b. Oscar sits between Phil and Tyreese.

First step is to calculate the  distance between Phil and Tyreese

Distance= 4 feet + 3 feet

Distance =7 feet

Hence,

P(Oscar sits between Phil and Tyreese)=7/9

Therefore If Morgan, Phil, Callie, and Tyreese are sitting on the side of a pool in that order. the probability that 0scar sits between Morgan and Phil is 2/9 and the probability that Oscar sits between Phil and Tyreese is 7/9.

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The complete question is:

Morgan, Phil, Callie, and Tyreese are sitting on the side of a pool in that order. Morgan is 2 feet from Phil. Phil is 4 feet from Callie. Callie is 3 feet from Tyreese. Oscar joins them.

a. Find the probability that 0scar sits between Morgan and Phil.

b. Find the probability that Oscar sits between Phil and Tyreese.

The sum of the given finite series is 100

The summation notation tells us how to sum each term in a series.

Example:

             [tex]\sum\limits^5_{n=1} {3n+1}[/tex]

means we need to evaluate the sum of (3n+1) as n moves from 1 to 5.  Here 1 is the lower limit, while 5 is the upper limit.

The given series is:

            [tex]\sum\limits^4_{n=1} {n^{3}}[/tex]

Expand this series:

          [tex]\sum\limits^4_{n=1} {n^{3}}=1^{3}+2^{3}+3^{3}+4^{3}[/tex]

1³ = 1

2³ = 8

3³ = 27

4³ = 64

Hence,

1³ + 2³ + 3³ + 4³ = 1 + 8 + 27 + 64 = 100

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Answer:5

Step-by-step explanation:

Answer:

x-int: (-12/9, 0)

y-int: (0, 6)

Step-by-step explanation:

x-int ==> on x-axis when y=0

y-int ==> on y-axis when x=0

9/4x -1/2y = -3

x-int: 9/4x -1/2(0) = -3

9/4x = -3

9x/4 = -3

9x*4/4=-3*4

9x=-12

x=-12/9 ==> x-int: (-12/9, 0)

y-int: 9/4(0) -1/2y = -3

-1/2y = -3

1/2y=3

y/2=3

y=6 ==> y-int: (0, 6)

Answer:

(5,15)

Step-by-step explanation:

we know that c=12 is 5 so your answer is 5,15

Answer:

Step-by-step explanation:

Point slope form:

y - y1 = m(x-x1)

y - 6 = 2(x + 2)

y - 6 = 2x + 4

y = 2x +10

The given conclusion is deductive reasoning.

Inductive reasoning is a bottom-up technique, whereas deductive reasoning is a top-down approach. Inductive thinking proceeds from the particular to the universal, whereas deductive reasoning proceeds from general premises to specific conclusions.

Given the statements; If Beth turns in her report early, she receives extra credit.

Beth turned in her report early.

She concludes that she will receive extra credit.

From the sentences, the first sentence is a general statement, the second statement is a specific statement. And, the third statement is a conclusion statement.

Therefore, the given conclusion is deductive reasoning.

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answer:

this is the solution

Answer:

Step-by-step explanation: 10=-9-x > add 9 to 10 > 19=-x> divide 19 by -x> x=-19

The standard normal probability density function is represented by its formula, 1 /σ√2π(e^(-z²/2))

What is standard normal variate?

A standard normal variate is defined as a variate whose mean is equal to 0, i.e. µ=0 and standard deviation is equal to 1, σ =1. Its probability density function is given by:

f(x) = 1/√2π(e^(-z²/2))

Explanation

The standard normal probability density function is a bell-shaped curve that can be represented by using the given formula:

1 /σ√2π(e^(-z²/2))

Hence, the standard normal probability density function is represented by using its formula..

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The required value of y is 10.

What is the constant of proportion?

A constant of proportion is illustrated as the ratio which relates two given quantities with each other in the relationship of proportion. Constant of proportion is also called constant variation, rate of change, and constant ratio.

Solving for the value of y

let k be the constant of proportion

When a quantity varies directly with others, then we have a relation, y = kx,       —-- 1

Now, find k for given x = 15 and y = 25, we need to put these values in equation 1, i.e.

25 = k(15)

k = 25 / 15

k = 5 / 3

Further calculate y for given x = 6 and constant of proportion = 5/3 i.e.

y = (6)(5 / 3)

y = 10

Hence, the required value of y is 10.

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   The simplified value of the given expression is √6√8 / 3.

  Rationalization is a mathematical operation that allows us to determine or eliminate a root of the denominator of a fraction, so that it can be expressed in linear form, either decimal or integer, by the product of a root.

  As defined above, we must perform a mathematical operation to eliminate the root of the denominator without altering the value.

(√6 / √3) (√8 / √3) we have a common denominator.

√6 √8/(√3)²

√6√8 / 3 is the result.

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After solving the equation, x < -3 is the value of inequality 2-3 x<11

⇒ 2-3x < 11

⇒ -3x < 11 - 2

⇒ -3x < 9

⇒ x < -9/3

⇒ x < -3

To solve linear equations, utilize the steps that are provided below.

Lets take an example of solve z for 7z – (3z – 4) = 12

Here is no multiplication or division, so this will be easy to solve

⇒ 7z – (3z – 4) = 12

⇒ 7z – 3z + 4 = 12

⇒ 4z = 12 – 4

⇒ 4z = 8

⇒ z = 8/4

⇒ z = 2

See, that was so simple, using the mentioned methods, every linear equation can be solved easily.

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Answer:

Let y = length of side parallel to the side with no fence

x = length of each of the other two sides

Then, y+2x = 64. So, y = 64-2x

Area = A = xy = x(64-2x)

The graph of the area function is a parabola opening downward with a highest point and with x-intercepts (0,0) and (32,0).

By the symmetry of the parabola, the x-coordinate of the maximum point lies halfway between the x-intercepts.

So, the area is maximized when x = 16 ft

y = 64 - 2x = 32 ft

Maximum area = xy = (16)(32) = 512 ft2

To maximize the area of the garden, the side of the fence parallel to the side of the house should be 32 ft long, and the other two sides should both have length 16 ft.