Solve this linear equation: 3x-5=2.5x+3-(x-4)

Answer:

B. how long the toy rang

Step-by-step explanation:

In order to test the battery, you need to see which will last the longest. Therefore, you should time how long it rang.

Answer:

Irrational numbers

Step-by-step explanation:

Any irrational number plus a rational number like (5/8) creates another  irrational number.

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An irrational number is a number that cannot turn into a fraction.

If you add an irrational number to a rational number, the sum is an irrational number because since the number cannot be ended and/or written into a fraction.

Irrational numbers are: Pi and infinity. Pi doesn't ever end, and all the digits (after 0) are different (it's a formula). Infinity has no end, so you cannot write infinity as a fraction.

Pi plus 5/8 is an irrational number.

Infinity plus 5/8 is also an irrational number.

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Answer:

Answer: Plot 1

Step-by-step explanation:

#1 Find the median of the whole set

- since there are 31 data, it is odd, we just need to find the 16th data which is 73.

- the median is 73

#2 Find the median of Less than Q2

- since there are 15 data, it is odd, we just need to find the 8th data which is 64

- the median is 64

#3 Find the median of more than Q2

- since there are 15 data, it is odd, we just need to find the 8th data which is 84

- the median is 84.

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

Putting it back to the box and whisker plot, it will be plot 1

Answer:

6c + 3b + 4

Step-by-step explanation:

First, you can group like terms:

9c + 3b + 4 - 3c -----> (9c - 3c) + (3b) + (4)

Then you can add terms:

(9c - 3c) + (3b) + (4) = (6c) + (3b) + (4) = 6c + 3b + 4

Hope this helps!!!

the answer is 3b+6c+4

Correct Question: If m∠JKM = 43, m∠MKL = (8x - 20), and m∠JKL = (10x - 11), find each measure.

1. x = ?

2. m∠MKL = ?

3. m∠JKL = ?

Answer/Step-by-step explanation:

Given:

m<JKM = 43,

m<MKL = (8x - 20),

m<JKL = (10x - 11).

Required:

1. Value of x

2. m<MKL

3. m<JKL

Solution:

1. Value of x:

m<JKL = m<MKL + m<JKM (angle addition postulate)

Therefore:

[tex] (10x - 11) = (8x - 20) + 43 [/tex]

Solve for x

[tex] 10x - 11 = 8x - 20 + 43 [/tex]

[tex] 10x - 11 = 8x + 23 [/tex]

Subtract 8x from both sides

[tex] 10x - 11 - 8x = 8x + 23 - 8x [/tex]

[tex] 2x - 11 = 23 [/tex]

Add 11 to both sides

[tex] 2x - 11 + 11 = 23 + 11 [/tex]

[tex] 2x = 34 [/tex]

Divide both sides by 2

[tex] \frac{2x}{2} = \frac{34}{2} [/tex]

[tex] x = 17 [/tex]

2. m<MKL = 8x - 20

Plug in the value of x

m<MKL = 8(17) - 20 = 136 - 20 = 116°

3. m<JKL = 10x - 11

m<JKL = 10(17) - 11 = 170 - 11 = 159°

Answer:

$20000

Step-by-step explanation:

Let Elle received $x

Therefore, Jude received (x + 5000)$

[tex] \because x : (x + 5000) = 4 :5[/tex]

[tex] \therefore \frac{x}{(x + 5000)} = \frac {4}{5}[/tex]

[tex] \therefore 5x = 4(x + 5000)[/tex]

[tex] \therefore 5x = 4x + 20000[/tex]

[tex] \therefore 5x - 4x = 20000[/tex]

[tex] \therefore x = \$20000[/tex]

Therefore, Elle's share = $20000

Answer:

11521 km

Step-by-step explanation:

The computation is given below:

But prior to reaching the final solution first the following calculations need to be computed

Angle between the Galapagos and Nauru is

= 90.30° + 166.56°

= 256.86°

As we know that the total of angles is  360 degrees

Now the major arc and the minor arc is

= 360° -  256.86°

= 103.14°

So,  the angles between galapagos islands is

= 180°  - 90.30°

= 89.70°

And, angles between the naura island is

= 180°  - 166.56°

= 13.44°

Now the sum of this two island is

= 89.70°  + 13.44°

= 103.14°

Therefore The length is

[tex]= \frac{\pi r}{180^{\circ}} \times \theta \\\\ = \frac{6,400 \pi}{180^{\circ}} \times 103.14^{\circ}[/tex]

= 11521 km

Answer:

3(x - 4)(x + 4)

Step-by-step explanation:

[tex]3 {x}^{2} - 48 \\ = 3( {x}^{2} - 16) \\ = 3( {x}^{2} - {4}^{2} ) \\ = 3(x - 4)(x + 4)[/tex]

Answer: 3/10

Step-by-step explanation:

Given a decimal number 0.3

To Write the rational number 0.3 in the form ab , where a and b are integers, take it to be :

0.3 /1

Multiply the numerator and the denominator by 10

0.3/1 × 10/10 = 3/10

Therefore, a = 3 and b = 10

the rational number 0.3 in the form ab , where a and b are integers is

3/10

Answer:

The answer is 4

Step-by-step explanation:

Answer:

c 58

Step-by-step explanation:

Answer:

62

Step-by-step explanation:

Add all of them and it’s 180

Answer:

x-int: (3, 0)

y-int: (0, -1.5)

Step-by-step explanation:

x-intercept is the x-value when y = 0

y-intercept is the y-value when x = 0

Step 1: Find x-intercept

0 = (x - 3)/2

0 = x - 3

x = 3

(3, 0)

Step 2: Find y-intercept

y = (0 - 3)/2

y = -3/2

(0, -1.5)

Answer:

Circumcenter = (4,0)

Circumcircle = √5

Step-by-step explanation:

The circumcentre is the point of intersection of the perpendicular bisectors of a triangle. The vertices of the triangle are equidistant to the circumcentre.

Let us assume the coordinate of the circumcentre is at O(x, y). Therefore the distance between the cirmcumcenter and the vertices are:

[tex]AO=\sqrt{(x-2)^2+(y-1)^2} =\sqrt{x^2-4x+4+(y^2-2y+1)}\\=\sqrt{x^2+y^2-4x-2y+5} \\\\BO=\sqrt{(x-5)^2+(y-2)^2} =\sqrt{x^2-10x+25+(y^2-4y+4)}\\=\sqrt{x^2+y^2-10x-4y+29} \\\\CO=\sqrt{(x-3)^2+(y-4)^2} \\=\sqrt{x^2-9x+9+(y^2-8y+16)}=\sqrt{x^2+y^2-9x-8y+25} \\[/tex]

AO = BO, therefore

√(x² + y²-4x-2y+5) = √(x² + y² - 10x - 4y + 29)

x² + y²-4x-2y+5 = x² + y² - 10x - 4y + 29

6x + 2y = 24       (1)

BO = CO

√(x² + y² - 10x - 4y + 29) = √(x² + y² - 9x - 8y + 25)

x² + y² - 10x - 4y + 29 = x² + y² - 9x - 8y + 25

-x + 4y = -4         (2)

Multiply equation 2 by 6 and add to equation 1:

26y = 0

y=0

Put y = 0 in -x + 4y = -4

-x + 4(0) = -4

x = 4

The cicumcenter is at (4, 0)

The radius of the circumcircle = AO = BO = CO. Therefore:

[tex]Radius=AO=\sqrt{(4-2)^2+(0-1)^2} =\sqrt{4+1}=\sqrt{5}[/tex]

Answer:

D. 15x10^20

Step-by-step explanation:

The rule for scientific notation is that the coefficient has to be between 1 and less than 10. This means there is only one digit in front of the decimal. 15x10^20 should be written as 1.5x10^21 to follow the rule.

Answer:

Hey there!

e15 times 10^20 isn't written in scientific notation. For a number to be in scientific notation, the leading number must be between 1 and 10.

Let me know if this helps :)

Answer:

-7

Step-by-step explanation:

-5 + (-2)

You are adding two negative numbers, -5 and -2.

Find their absolute values: 5 and 2.

Add the absolute values: 5 + 2 = 7

The answer is negative: -7

-5 + (-2) = -7

Answer:

0.6a - 0.5

Step-by-step explanation:

We can expand 0.2(3a - 1) and evaluate 0.3-0.6, getting 0.6a - 0.2 - 0.3.

We can then simplify this expression, getting 0.6a - 0.5.

Answer:

Kindly check explanation

Step-by-step explanation:

Given the expression :

Chiang is filling a 50 ft3 container with water at a rate of 0.5 ft3/min. Interpret

50 ft^3 represents the volume of the container which is a product of its length, width and height. The rate is said to be 0.5ft^3 /min. The stated rate represents the volume of the container which Chiang fills each minute. The rate could be obtained by taking the proportion of the entire volume of the container and the time it takes Chiang to fill it.

Here, it will be :

Rate = ( volume of container (ft^3) / time taken (minutes))

Hence 0.5ft^3/min means on average Chiang's fills a volume of 0.5ft^3 of the container each minute.

Answer:

x= -4/9

Step-by-step explanation:

HOPE THIS HELPS!!!! :)

<3333333333

Answer:

Yes

Step-by-step explanation:

The length of QW can be determined from PW and PQ by figuring out what the lengths are for Q and W in PW and PQ.

Answer:

a.  Yes

b.  Yes

c. Yes

d. Degree 8

Step-by-step explanation:

a. Yes, n(x) is a polynomial of one single term (also called monomial) because it contains variables raised to positive integers.

b. Yes, m(x) is a polynomial of also one single term (also called monomial) because it contains variables raised to positive integers.

c. The quotient of n(x) / m(x) can be reduced to a polynomial of one single term as follows:

[tex]\frac{n(x)}{m(x)} =\frac{6\,x^5\,y^7}{2\,x^3\,y} =3\,x^2\,y^6[/tex]

which as can be seen, also contains variables raised to positive integers.

d. The degree of the polynomial resultant is the addition of the powers of all variables present (x and y) which results in: 2 + 6 = 8

Therefore the degree of this polynomial is 8.

Answer:

Hey there!

5(v+3)-10v>-10

5v+15-10v>-10

-5v+15>-10

-5v>-25

v<5

Let me know if this helps :)

Answer:

[tex]\Huge \boxed{v < 5}[/tex]

Step-by-step explanation:

5(v + 3) - 10v > -10

Expand brackets.

5v + 15 - 10v > -10

Combine like terms.

-5v + 15 > -10

Subtract 15 from both parts.

-5v > -25

Divide both parts by -5 (flip sign).

v < 5

Answer:

34°

Step-by-step explanation:

5x+4+5x-1=73

10x+3=73

10x=73-3

10x=70

x=7

m<ABC=5x-1=5(7)-1=35-1=34°

Answer: B. 29 mi (which you typed 29 in)

Step-by-step explanation:

Use law of cosine to solve: a²=b²+c²-2bc·cosA (the corresponding angle)

a²=19²+12²-2×19×12×cos (138)

a²=361+144-456cos(138)

a²=505-456cos(138)

a²=843.874 (rounded)

a=29 mi

Answer:

$1,461.60

Step-by-step explanation:

Value of the stock in the first year if value increased by 16% = 1500 x (1.16) = $1740

1.16 = 100% + 16% = 116%

Value of the stock in the second year if value decreased by 16% = $1740 x 0.84 = $1,461.60

0.84 = 100% - 16% = 84%

Answer:

  75

Step-by-step explanation:

Let t and u represent the tens and units digits, respectively.

  t = u + 2 . . . . the tens digit exceeds the units digit by 2

  t + 2u = 17 . . . . the sum of the tens digit and twice the units digit is 17

Substituting for t in the second equation, we get ...

  (u +2) +2u = 17

  3u = 15 . . . . . . . . subtract 2

  u = 5 . . . . . . . . . . divide by 3

  t = u+2 = 7

The number is 75.

_____

Check

7 exceeds 5 by 2. 7 + twice 5 = 7 + 10 = 17.

Answer:

2 quiz

Step-by-step explanation:

Mr Ondonez gives his students 34 quizzes over 17 weeks. They are given the same number of quiz per week. To calculate the number of quiz given per week, we have to divide the total number of quiz given by the total number of weeks. Therefore:

Number of quiz per week = Total number of quiz / Total number of weeks  

Number of quiz per week = 34 / 17 = 2

The students are given 2 quizzes per week.

Answer:

2 quiz

Step-by-step explanation:

Answer:

The missing side is 10.25

Step-by-step explanation:

Step 1: Use Pythagorean Theorem

[tex]11^{2} = 3.9^{2} + x^{2} \\121 = 15.21 + x^{2}\\121 - 15.21 = x^{2} \\105.79 = x^{2} \\\sqrt{105.79} = \sqrt{x^{2} } \\x = 10.285[/tex]

Therefore the missing side is 10.285

x+x+y.y.y = 2x+y^3 ( y cube)

So, The answer is (d)