Solve the system of linear equations: 1/5 x + 1/8 y = 1 1/2 x − 1/3 y = 1

Answer:

$39.36

Step-by-step explanation:

The first sale we saw, which was 20% off, needs to be applied first as the second discount is additional. With that being said, we need to multiply 82 times 80%. This is because we removed 20% of the standard 100% amount and we are left with 80%. To convert this, keep in mind 100% is equal to 1. So 80% is equal to .80 with this logic. So 82x0.8=65.6. Now we need to take 40% off of the modified price 65.6. By converting 40% off is equal to 0.60(keyword off). Now 65.6x0.60=39.36. The final price is 39.36

Plz mark me brainliest cuz then I'll answer evertything

Kyndal can buy the lamp for $39.36 after a 20% and an additional 40% discount on the original price of $82.

To solve this problem, we need to calculate 20% of $82, then subtract that from $82 to find the sale price. Then, we need to calculate 40% of that sale price and subtract it to find the final price. Let's break it down:

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Answer:

Step-by-step explanation:

Set up two equations:

2y >/=x

X+y=36

Solve by substituting x for 2y.

This is using the method of substitution.

Answer:

21

Step-by-step explanation:

Use Pythagorean Theorem

If you are looking for leg given the other sides of the right triangle: just do bigger square minus small square

and take square root

so 29^2 - 20^2

And then sqrt it!

sqrt(29^2-20^2)

21

Answer:

b=21

Step-by-step explanation:

a^2 + b^2 = c^2

20^2 +b^2 = 29^2

b^2+400=841

b^2=441

b=21 or b= - 21

Since we are using the values for a triangle we take the positive value.

Answer: 30 inches

Step-by-step explanation:

We know that the formula for calculate the volume of a cube is:

[tex]V=s^3[/tex]

Where "s" is the length of each side.

Since the volume of each cube-shaped box is 125 cubic inches, we can find "s":

[tex]125\ in^3=s^3\\\\\sqrt[3]{125\ in^3}=s\\\\s=5\ in[/tex]

We know that  the display has six layers of boxes, then , to calculate the height of the display, we can multiply the value of "s" obtained before by 6. Then:

[tex]height=(5\ in)(6)=30\ in[/tex]

Answer:

Step-by-step explanation:

V=8^3

30 inches answer

Answer:where is the question for the property

Step-by-step explanation:

=========================================

Explanation:

Start by sorting the values from smallest to largest. This is known as ascending order. The original set {3, 5, 7, 4, 3, 1} will sort to {1, 3, 3, 4, 5, 7}

After the values are sorted, we will look at the middle most value to find the median. Because there are six items in this data set, the median number is between slot 3 and slot 4. Note how the sorted data set breaks down into

{1, 3, 3} and {4, 5, 7}

we see that 3 and 4 are tied for the middle most, so the median must be 3.5 which is halfway between 3 and 4.

Hello There!

Let’s first remember that the median is the middle number in an ordered set of data.

Our data set is

1,3,3,4,5,7

Since there are two numbers in the middle, we have to add up our two numbers in the middle which are 4 and 3 so together that gives us a sum of 7 and then we divide by 2 which we get a quotient of 3.5.

Answer:

(4 days) is the homogeneous mixture

Answer:

see explanation

Step-by-step explanation:

25

The diagonals of a kite are perpendicular to each other, hence

∠EHF = 90°

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

In ΔEHF

∠1 + ∠2 + 90 = 180, that is

42 + ∠2 + 90 = 180

132 + ∠2 = 180 ( subtract 132 from both sides )

∠2 = 48°

26

DE and DG are congruent sides, hence

4x - 2 = 22.5 ( add 2 to both sides )

4x = 24.5 ( divide both sides by 4 )

x = 6.125

27

∠A and ∠C are congruent, hence

∠A = ∠C = 82°

The sum of the interior angles of a kite = 360°, hence

x = 360 - (82 + 82 + 140) = 360 - 304 = 56

25). Measure of angle 2 will be 48°.

26). Value of x = 6.125

27). Value of x = 56°

25). Given in the picture,

     Apply triangle sum theorem in ΔEHF,

     m∠EHF + m∠2 + m∠1 = 180°

     90° + m∠2 + 42° = 180°  [Since, m∠EHF = 90°]

     m∠2 = 180° - 132°

     m∠2 = 48°

            Therefore, measure of angle 2 will be 48°.

26). Given in the question,

    By the property of a kite,

    DE = DG

    (4x - 2) = 22.5

    4x = 24.5

    x = 6.125

           Therefore, value of x will be 6.125

27). Given in the question,

    Sum of the interior angles of a kite = 360°

    Therefore, m∠A + m∠B + m∠C + m∠D = 360°

    By the property of a kite,

    m∠A = m∠C = 82°

    m∠A + m∠B + m∠A + m∠D = 360°

    2(m∠A) + m∠B + m∠D = 360°

    2(82°) + 140° + x° = 360°

     x = 360° - 304°

     x = 56°

          Therefore, value of 'x' will be 56°.

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The table of values that represents the equation y = 7x - 3 is:

x    y

-2  -17

-1   -10

0    -3

1      4

2     11

Option D is the correct answer.

We have,

Equation:

y = 7x - 3

Now,

Substitute x = -2, -1, 0, 1, 2 on the equation.

So,

y = 7 x (-2) - 3 = -14 - 3 = -17

y = 7 x (-1) - 3 = -7 - 3 = - 10

y = 7 x 0 - 3 = -3

y = 7 x 1 - 3 = 7 - 3 = 4

y = 7 x 2 - 3 = 14 - 3 = 11

Thus,

The table of values that represents the equation y = 7x - 3 is:

x    y

-2  -17

-1   -10

0    -3

1      4

2     11

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Answer:

d = 35(4) + 55(t)

Step-by-step explanation:

35 * 4 then added to 55 * the hours that "t" equals will then equal the total distance traveled, d

The distance traveled by a motorist travelling at 35 miles/hour for 4 hours and then at 55 miles/hour for t hours can be expressed as a function of time t, d(t) = 140 + 55t.

The subject of this question is functions, which is a topic in Mathematics. To express the total distance traveled as a function of t, we need to use the formula distance = speed x time. The motorist travels at 35 miles per hour for 4 hours, and then at 55 miles per hour for t hours. Therefore, the total distance d can be calculated as follows:

d = (35 mi/h x 4 h) + (55 mi/h x t h).

So, d = 140 mi + 55t mi.

Thus, the total distance traversed by the motorist, expressed as a function of time t in hours, is d(t) = 140 + 55t.

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The approximate length of its diagonal is:

                                    19.8 cm

We know that for any square with a side length of s units.

The diagonal of a square has length: [tex]\sqrt{2}s\ units[/tex]

Also, the perimeter of a square is the sum of all the side lengths of a square.

i.e.

[tex]Perimeter=4s[/tex]

Here we are given:

Perimeter of square= 56 cm.

i.e.

[tex]4s=56\\\\i.e.\\\\s=\dfrac{56}{4}\\\\i.e.\\\\s=14\ cm[/tex]

Hence, the diagonal of the square has length:

[tex]Diagonal=14\sqrt{2}\ units\\\\i.e.\\\\Diagonal=14\times 1.414\\\\i.e.\\\\Diagonal=19.796\ cm[/tex]

which is approximately equal to:  19.8 cm

Answer:

d.) on edg.

Step-by-step explanation:

just did it

good luck!

Answer:

150 feet of flowers would be planted along side C

[tex]a=5400[/tex]

Step-by-step explanation:

Use the pythagorean theorem to find the length of side C

[tex]a^2+b^2=c^2[/tex]

Input the corresponding numbers into the formula

[tex]90^2+120^2=c^2[/tex]

[tex]c^2=22500[/tex]

[tex]c = \sqrt{22500} \\ c=150[/tex]

150 feet of flowers would be planted along side C

To find the area multiply the base and height together, and divide the total by two

[tex]a = \frac{bh}{2}[/tex]

[tex]a = \frac{90 * 120}{2} \\ a=5400[/tex]

Answer:

Step-by-step explanation:

[tex]a)\ \text{Use the Pythagorean theorem:}\\\\leg^2+leg^2=hypotenuse^2\\\\\text{We have:}\ leg=90\ ft,\ leg=120\ ft,\ hypotenuse=c.\\\\\text{Substitute:}\\\\c^2=90^2+120^2\\\\c^2=8100+14400\\\\c^2=22500\to c=\sqrt{22500}\\\\c=150\ ft[/tex]

[tex]b)\ \text{The formula of an area of a right triangle:}\\\\A=\dfrac{ab}{2}\\\\a,\ b-legs\\\\\text{We have}\ a=90\ ft\ \text{and}\ b=120\ ft.\ \text{Substitute:}\\\\A=\dfrac{(90)(120)}{2}=(90)(60)=5400\ ft^2[/tex]

Answer:

Step-by-step explanation:

This is called the shadow method to make an indirect measurement of an specific highness. For example, indirect measurement to calculate a building highness.

Answer:

Step-by-step explanation:

A.) 2a+4b-c:  Replacing a with 2, b with 3 and c with 4, we get:  

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

B.) 6(a+c)-b:  Replacing a with 2 and c with 4, we get 6(2 + 4) - 3.

The work inside parentheses should be done first, resulting in 6(6) - 3.

This comes out to 33.

Answer:

That should be 2x + 5y = 20.

Step-by-step explanation:

First, you have to correct this: y + 7 = -⅖(x - 10). Now, first convert to Slope-Intercept Form by moving -7 to the other side of the equivalence symbol to get y = -⅖x + 4, then finally convert to Standard Form by moving ⅖x to the other side of the equivalence symbol to end up with ⅖x + y = 4.. Now, there is an extended step when it comes to fractional coefficients, and that is multiplying the whole equation by the denominator to get rid of the denominator being there in the first place, REALLY ending with 2x + 5y = 20.

BUT, if your assignment says otherwise, then the first looks correct. I hope this helps.

[tex]

2x^2-7x+6=(2x-6)(x-1)=\boxed{2(x-3)(x-1)}

[/tex]

Hope this helps.

r3t40

Answer:

b

Step-by-step explanation:

Given

[tex]\frac{x^2-2x-3}{4x^2-12}[/tex]

Substitute x = 3 into the expression

= [tex]\frac{3^2-2(3)-3}{4(3)^2-12}[/tex]

= [tex]\frac{9-6-3}{36-12}[/tex]

= [tex]\frac{0}{24}[/tex] = 0 → b

Answer:

b

Step-by-step explanation:

the answer is b:0

Answer:

Fully simplified it equals 4x^2 -21x -18

Explanation:

-You need to distribute the x to all of the terms in the second binomial and you also need to distribute -6 to all the terms in the second binommial giving you 4x^2 +3x - 24 -18

-You combine like terms to simplify and your answer is 4x^2 -21x -18

Answer: 4x² -21x -18

Step-by-step explanation: a p e x

Answer:

B and C are geometric sequences.

Step-by-step explanation:

A geometric sequence is a sequence of numbers in which the ratio between consecutive terms is constant.

A is not a geometric sequence because the number 1 is repeated twice in the sequence.

B is a sequence because the sequence is being multiplied by 0.5 each time.

C is a geometric sequence because it is being multiplied by 1/3 each time.

D is not a geometric sequence because it is not being multiplied each time - it is increasing by +5 (arithmetic progression - not geometric).

Hope this helps!

The following are geometric sequences

1. 10,5, 2.5, 1.25, 0.625, 0.3125

2. -9, -3, -1, -1/3, -1/9, -1/27

The correct option is (B) & (C)

A geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio, r.

1. A is not a geometric sequence because the '1'  is repeated two times in the sequence.

2. B is a geometric sequence because the sequence is being multiplied by 0.5 each time.

5/10=0.5

2.5/5=0.5

1.25/2.5=0.5

0.625/1.25=0.5

3. C is a geometric sequence because it is being multiplied by 1/3 each time.

-3/-9=1/3

-1/-3=1/3

-1/3/-1= 1/3

-1/9/-1/3= 1/3

4. D is not a geometric sequence because the multiplicative factor is not same.

Hence, 10,5, 2.5, 1.25, 0.625, 0.3125 and -9, -3, -1, -1/3, -1/9, -1/27 is geometric sequence.

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The entry in row 1, column 1 of [tex]\mathbf{AB}[/tex] is

[tex]\begin{bmatrix}2&4\end{bmatrix}\begin{bmatrix}5\\6\end{bmatrix}=2\cdot5+4\cdot6=34[/tex]

(i.e. the dot product of row 1 of [tex]\mathbf A[/tex] and column 1 of [tex]\mathbf B[/tex])

The entry in row 1, column 2 of [tex]\mathbf{AB}[/tex] is

[tex]\begin{bmatrix}2&4\end{bmatrix}\begin{bmatrix}-9\\-4\end{bmatrix}=2\cdot(-9)+4\cdot(-4)=-34[/tex]

The second option is the correct answer.

Answer:

J 36

Step-by-step explanation:

AB = 9, BC = 12, and m∠B = 90°.  Since this is a right triangle, we can use Pythagorean theorem to find AC.

c² = a² + b²

c² = 9² + 12²

c = 15

So the perimeter is:

P = 9 + 12 + 15

P = 36

Final answer:

Linda received $20 from each of her 5 relatives, as found by subtracting her original amount from the final amount and then dividing by the number of relatives.

Explanation:

The student has asked how much money Linda received from each relative. Linda started with $15 in her coin bank and ended up with $115 after receiving equal amounts from 5 relatives. To find out how much money Linda received from each relative, you need to perform a simple subtraction to find the total amount of birthday money received, and then divide that number by 5.

Subtract the starting amount of $15 from the ending amount of $115 to find the total amount received.
Total received = $115 - $15 = $100

Divide the total received by the number of relatives to find out how much each relative gave.
Amount per relative = $100 / 5 = $20

Therefore, Linda received $20 from each of her 5 relatives.

Answer:

B)4.5 cubic feet

Step-by-step explanation:

To find the volume of a rectangular prism, we use the formula

V = l*w*h

V = 1.5*3*1

V = 4.5 ft^3

Answer:

Reflection against the y-axis

Step-by-step explanation:

Answer: 2

Step-by-step explanation:

[tex]\text{If the angle is in Quadrant II and sin A }=\dfrac{4}{5}, \text{then cos A }=-\dfrac{3}{5}.\\use\ Pythagorean\ Theorem: x^2+4^2=5^2\implies x=3,\quad cos =\dfrac{x}{h}\\\\\\tan\bigg(\dfrac{A}{2}\bigg)=\dfrac{1-cosA}{sinA}\\\\\\.\qquad \qquad =\dfrac{1-(-\dfrac{3}{5})}{\dfrac{4}{5}}\\\\\\.\qquad \qquad =\dfrac{\dfrac{8}{5}}{\dfrac{4}{5}}\implies \dfrac{8}{5}\div\dfrac{4}{5}\implies \dfrac{8}{5}\times\dfrac{5}{4}=\dfrac{8}{4}=\large\boxed{2}[/tex]

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Method 3 Calculating the Volume of a Rectangular Prism

Write down the formula for finding the volume of a rectangular prism. The formula is simply V = length * width * height. ...

Find the length. ...

Find the width. ...

Find the height. ...

Multiply the length, the width, and the height. ...

State your answer in cubic units.

The order of steps to calculate the volume of a prism is given below:

The volume of a prism is defined as the amount of space a prism occupies.

Step 1: Write the given dimensions of the prism.

Step 2: Determine the volume of the prism using the formula V = B × H where V, B, and H are the volume, base area, and height of the prism.

Step 3: The value of the volume of the prism is once obtained then add the unit of volume of prism in the end (in terms of cubic units).

Example: Find the volume of a prism whose base area is 3 square inches and height is 7 inches.

Given that: B = 3 square inches, H = 7 inches

Thus, the Volume of the prism, V = B × H ⇒ V = 3 × 7 = 21 in³

Therefore, the volume of the prism is 21 cubic inches.

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the answer is 2x2+12z-5 (its also in the picture)

7(x + 2) = 7x - 10

7x + 14 = 7x - 10

let's recall the slope-intercept form, now, both equations on each side of the equals sign have the same slope, of 7, that is a flag that both equations are parallel.

their y-intercept is 14 and -10 respectively, however that just means that one is above the other, but since they're parallel they will never touch each other and any solutions is where the graphs intersect, and for parallel lines that never happens, thus no solutions.