What is 7/8- 5/8?
Answer

Answer:

[tex]\huge\boxed{42.9 \%}[/tex]

Step-by-step explanation:

=> [tex]\frac{3}{7}[/tex]

To make it a percentage, we need to multiply and divide it by 100

=> [tex]\frac{3}{7} * \frac{100}{100}[/tex]

=> [tex]\frac{300}{700}[/tex]

To make the denominator 100, we'll divide the numerator and denominator by 7

=> [tex]\frac{300/7}{700/7}[/tex]

=> [tex]\frac{42.9}{100}[/tex]

Percentage means out of hundred, so it becomes

=> 42.9 %

Answer:

Step-by-step explanation:

Let b be the length of the second parallel side

Area of a trapezium is given by

[tex]A = \frac{1}{2} (a + b)h[/tex]

where

h is the height

a and b are the parallel sides

From the question

Area = 230 cm²

height = 20cm

one of parallel side / a = 8 cm

Substitute the values into the above formula and solve for b

That's

[tex]230 = \frac{1}{2} ( 8 + b) 20[/tex]

Reduce the fraction with 2

That's

[tex]230 = (8 + b) \times 10[/tex]

Expand the terms

That's

[tex]230 = 80 + 10b[/tex]

[tex]10b = 230 - 80 \\ 10b = 150[/tex]

Divide both sides by 10

We have the final answer as

Hope this helps you

Answer:

22

Step-by-step explanation:

2x+4+x-10=60

3x-6=60

3x=66

x=22

Answer:

[tex]\boxed{\bold{\huge{\boxed{Option \ 4: \ x = 22}}}}[/tex]

Step-by-step explanation:

If AD is a ray inside angle ABC

Then

∠ABD + ∠DBC = ∠ABC

2x + 4 + x - 10 = 60

3x - 6 = 60

Adding 6 to both sides

3x = 60 + 6

3x = 66

Dividing both sides by 3

x = 22

Step-by-step explanation:

In expression:25w+55

variable=w

cofficient = coefficient of variable (w)=25

constant=55

In the given expression variable is "w", the coefficient is "25" and the constant is"55".

An expression is a combination of some mathematical symbol such that arithmetic operator and variable such that all are constrained and create an equation.

In other meaning, expression is very useful to determine the end or root value of constraint.

For example 3x +5y

The constraint of expression is represented as = or <, >.

Given the expression

25w+55

Now, in general, the variable is given by an English symbol so "w" will be the variable.

The constant which in multiply of variable is called coefficient so "25" will be coefficient.

Now,

The only remaining term "55" is a constant.

Hence "In the given expression variable is "w", the coefficient is "25" and the constant is"55".

To learn more about expression,

https://brainly.com/question/14083225

#SPJ2

Answer:

Add −11 and 5.

−6

Move 5 spaces to the right starting from -11 and you will end up at -6! (●'◡'●)

Answer:

-6

Step-by-step explanation:

So we want to find the value of:

[tex](-11)+5[/tex]

Simply add:

[tex](-11)+5=-6[/tex]

Further notes:

Again, to use the number line, place the first point at -11. Since we are adding, we move to the right.

So, starting at -11, move 5 spaces to the right. You should end up at -6, confirming our previous answer.

Answer: B

Step-by-step explanation:

To find (f-g)(x), you simply subtract f(x) and g(x). With the given functions of f(x) and g(x), we can directly subtract them.

f(x)-g(x)                                              [plug in f(x) and g(x)]

-3x+2-x³                                             [rewrite in the correct order]                

-x³-3x+2

Since there are no like terms for us to combine, B is our correct answer.

Answer:

3/4=.75

i wish i could explain but i dont really know but there's the anwser at least

Hope i helped

SJ

Answer:

the answer is 0.75

Step-by-step explanation:

You can put that into a decimal. 3/4 = 0.75 . Dividing a number by a larger number ends in an answer that is less than one always!.

Answer:

I pretty sure its 2 a^ 2 + 6 a^ 3 + 9 a^ 2 + 8 a

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

cc

Answer:

-6

Step-by-step explanation:

2x = x-6

subtract x from both sides

x = -6

Answer:

2x=x-6

Step-by-step explanation:

2 times a number -> 2x

6 less than x -> x-6

Our equation would be:

2x=x-6

Subtract x from both sides.

2x-x=x-x-6

Combine like terms

x=-6

Answer:

3.5 lbs of jellybeans

Step-by-step explanation:

2.5 x 3.40

8.5

13.75 - 8.5 = 5. 25

5. 25 divided by 1.50 =

3.5

Answer:

3.5

Step-by-step explanation:

Answer:

B) There is NOT sufficient evidence to conclude the proportion of work time linguists study a new language is more than 10%.

Step-by-step explanation:

Given that:

the null hypothesis is;

[tex]H_o : p =0.10[/tex]

the alternative hypothesis is:

[tex]H_a : p >0.10[/tex]

The p - value for the hypothesis is 0.09

The level of significance ∝ = 0.025

The Decision rule is that to reject the null hypothesis if the p-value is less than the level of significance ∝.

Conclusion: We fail to reject the null hypothesis because the p-value is  greater than the level of significance , therefore:

There is NOT sufficient evidence to conclude the proportion of work time linguists study a new language is more than 10%.

Answer:

a) the probability that Both motors will operate satisfactorily in the capsule 0.6222

b) the probability that One motor will operate satisfactorily and the other will not is 0.3556

Step-by-step explanation:

Given that;

total number of motors N = 10

number of motors will not operate satisfactory m = 2

number of motors randomly selected n = 2

let X be number of motors will that will not operate successfully

here, X≅Hyper geometric (x; N,n,m)

The probability mass function of x is;

P (X = x)=  { m }   {N - m }

                  {x }    {n - x}

        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                     { N }

                     { n  }

a)

the probability that both motors will operate satisfactorily in the capsule i.e no motor will not operate satisfactory

so

P(X= 0)  = { 2 }    { 10 - 2 }

                 {0 }    { 2 - 0}

        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                     { 10 }

                     { 2  }

so

P (X = 0)  = { 2 }   { 8}

              {  0 }   { 2  }

        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                     { 10 }

                     { 2  }

p(P= 0)=1×28 / 45 = 28/45 = 0.6222

Therefore the probability that Both motors will operate satisfactorily in the capsule 0.6222

b)

the probability that one motor will operate satisfactorily and the other will not.

P(X=1)  = { 2 }   { 10 - 2 }

              {  1 }    { 2 - 1  }

        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                     { 10 }

                     { 2  }

so

P(X=1)  = { 2 }   { 8 }

              {  1 }   { 1  }

        ⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻⁻

                     { 10 }

                     { 2  }

P(X=1)  = 2×8 / 45 = 16/45 = 0.3556

Therefore the probability that One motor will operate satisfactorily and the other will not is 0.3556

Answer:

8 km

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

  x           8000 km

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

2 km       2000 m

Cross-multiplying, we get (2000 m)x = (8000 m)(2 km),

which reduces to x = 8 km

Answer:

Step-by-step explanation:

Since the table showed her that  2 km = 2000m.

To determine, how many km in 2000m, she would divide by 1000.

= 2000 / 1000 = 2 km.

Similarly, for 8000m = 8000 / 1000 = 8 km

Answer:

Natalie is 13 years old

Step-by-step explanation:

7+6=13

Answer:13

Step-by-step explanation: 7 + 6 = 13

Answer:

Here is an example

Use distributive property to write an expression that is equivalent to 5 x + 25. Solution : 5x + 25 = 5x + 5(5) 5x + 25 = 5(x + 5) Example 7 : Use distributive property to write an expression that is equivalent to 7y + 5y. Solution : 7y + 5y = y(7 + 5) Example 8 : Use distributive property to write an expression that is equivalent to 0.2y + z.

Step-by-step explanation:

Answer:

9.33

Step-by-step explanation:

12( 4 + 3 ) / 6 + 3

48 + 36 / 6 + 3

84 / 9

9.33

Answer:

Total # of marbles: 10

# of red marbles: 7

Probability of choosing a red marble out of 10 marbles: 7/10

Then in the second round, you replace that marble so you still have a total of 10 marbles and 7 of them will still be red: 7/10

Multiply...

7/10 x 7/10 = 49/100

PROBABILITY: 49/100 (or 49%)

Hoped I helped

Hi there! :)

Answer:

[tex]\huge\boxed{15.87kg}[/tex]

To solve, simply set up a proportion. Let "x" represent the mass of a 95 kg person on the moon:

[tex]\frac{14.2kg}{85kg} = \frac{x}{95kg}[/tex]

Cross multiply:

[tex]14.2 * 95 = 85 * x[/tex]

[tex]1349 = 85x[/tex]

Divide both sides by 85:

[tex]1349/85 = 85x/85[/tex]

[tex]x = 15.87 kg[/tex]

Answer:

15kg

Step-by-step explanation:

85/14.2=5.98

95/6=15

Answer:

Quadrant 2 I think.

Step-by-step explanation:

You stet on the x axis wich is positive and you second number on the y axis is negitive

Answer:

135 square centimeters.

Step-by-step explanation:

The area of a triangle is given by the formula:

[tex]A=\frac{1}{2}bh[/tex]

Where b is the base length and h is the length of the vertical height.

From the triangle, we can see that the base is 18 and the vertical height is 15. Thus:

[tex]A=\frac{1}{2}(18)(15)[/tex]

Multiply:

[tex]A=(9)(15)\\A=135\text{ cm}^2[/tex]

The area of the triangle is 135 square centimeters.

Answer:

135 cm

Step-by-step explanation:

Answer:

770,000?

Step-by-step explanation:

your just rounding

Answer:

766,000

Step-by-step explanation:

Brainliest pleeease

Answer:

(-3, -2)

Step-by-step explanation:

y = -2x + 4; y = -2

plug in y

-2 = -2x + 4

subtract 4 from each side

-6 = 2x

divide by 2

x = -3

Answer:

JL = 21

Step-by-step explanation:

Given that K is on line segment JL, therefore:

KL + JK = JL (according to segment addition postulate)

KL = 2x - 2

JK = 5x + 2

JL = 4x + 9

Thus:

[tex] (2x - 2) + (5x + 2) = (4x + 9) [/tex]

Solve for x

[tex] 2x - 2 + 5x + 2 = 4x + 9 [/tex]

[tex] 2x +5x - 2 + 2 = 4x + 9 [/tex]

[tex] 7x = 4x + 9 [/tex]

Subtract 4x from both sides

[tex] 7x - 4x = 4x + 9 - 4x [/tex]

[tex] 3x = 9 [/tex]

Divide both sides by 3

[tex] \frac{3x}{3} = \frac{9}{3} [/tex]

[tex] x = 3 [/tex]

Find the numerical length of JL

[tex] JL = 4x + 9 [/tex]

Plug in the value of x

[tex] JL = 4(3) + 9 = 12 + 9 = 21 [/tex]

Answer:

375 miles

Step-by-step explanation:

Set it up as an equation where m=miles

$75 +.6m=.80m

Answer:

The null hypothesis will not be rejected at 5% significance level.

Step-by-step explanation:

Consider a Chi-square test for goodness of fit.

The hypothesis can be defined as:

H₀: The observed frequencies are same as the expected frequencies.

Hₐ: The observed frequencies are not same as the expected frequencies.

The test statistic is given as follows:

 [tex]\chi^{2}=\sum\limits^{n}_{i=1}\frac{(O_{i}-E_{i})^{2}}{E_{i}}[/tex]

The information provided is:

Observed values:

Half Pint: 36  

XXX: 35  

Dark Night: 9  

TOTAL: 80

The expected proportions are:  

Half Pint: 40%

XXX: 40%  

Dark Night: 20%  

Compute the expected values as follows:

E (Half Pint)  

 [tex]=\frac{40}{100}\times80=32[/tex]

E (XXX)  

 [tex]=\frac{40}{100}\times80=32[/tex]

E (Dark night)  

 [tex]=\frac{20}{100}\times80=16[/tex]

Compute the test statistic as follows:

 [tex]\chi^{2}=\sum\limits^{n}_{i=1}\frac{(O_{i}-E_{i})^{2}}{E_{i}}[/tex]

     [tex]=\frac{(36-32)^{2}}{32}+\frac{(35-32)^{2}}{32}+\frac{(9-16)^{2}}{16}\\\\=3.844[/tex]

The test statistic value is, 5.382.

The degrees of freedom of the test is:

n - 1 = 3 - 1 = 2

The significance level is, α = 0.05.

Compute the p-value of the test as follows:

p-value = 0.1463

*Use a Chi-square table.

p-value = 0.1463 > α = 0.05.

So, the null hypothesis will not be rejected at 5% significance level.

Step-by-step explanation:

Since ray GI bisects ∠FGH, we know that the ray is in the middle of the angle, since it is a bisector. That means that both angles have the same value. ∠FGI is equal to 51º. Since we know that both of the angles are the same value, that makes m∠IGH also equal to 51º. To find the angle of m∠FGH, we add both angles together to get our answer: 102º.

Answers:

m∠IGH = 51º

m∠FGH = 102º

Answer:X=10

Step-by-step explanation:

Answer:

38 people

Step-by-step explanation:

add 11, 18, and 9 together