please help with problem 22​

Answer:

2,200,000=2.2x10^6

Step-by-step explanation:

Answer:

forty-seven :)

Step-by-step explanation:

4 tens

7 ones :)

Have an amazing day!!

Please rate and mark brainliest!!

Answer:

download mo po gauth math tas scan mo po yan

Step-by-step explanation:

Answer: 4 − 1 = 3

Step-by-step explanation: 6 - 2 = 4    32 + 42 = 25    4 − 1 = 3

Answer:

Hello,

Step-by-step explanation:

I can only explain in mathematics not in English (i am French).
c: number of customers

n: number of good reviews

k: factor of proportionality

1)

p=k*c*n

15000=k*75*100 ==> k=2

if c=250 and n=150 then p=2*250*150=75000

2)

A=b*a/2 since b= 9 and a=4 then 9*4/2=18 (cm²)

A=4*7/2=14 (cm²)

Answer: I believe that the answer is -3x=4y

Step-by-step explanation: I hope this helps and I am sorry if I am wrong.

3/8 * 11 = 4.125

3/4 * 2 = 1.5

4.125  = 33/8 = 4 1/8

1.5 = 3/2 = 1 1/2

Answer:

Hope this helps :)

3/8 x 11 = 33/8 = 4 1/8 (simplified and converted into mixed number)

3/4 x 2 = 6/4 = 1 2/4 = 1 1/2 (simplified and converted into mixed number)

If I want to buy 3 packages of 10 cans it will cost me around $1.4 per can.

It is given that the price of a package of 10 cans of soup = $14

and the price of an individual can = $2

Now, if I want to purchase at least 25 individual cans there can be two possible ways to do this:

Therefore, if I decided to buy 3 packages of 10 cans it will cost me $42 and I will pay $1.4 for each can.

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Answer:

x=2

Step-by-step explanation:

Vertical angles are equal.

5x+1=4x+3

   -1        -1

5x=4x+2

-4x -4x

1x=2

x=2

The value of x is 2.

5(2)=4(2)+2

10=8+2

10=10

Hope this helps.

The possible triples are: (3, 3, 3), (4, 2, 4) as seen by counting theorem.

Now, by the counting principle,

Hence, the possible triples are: (3, 3, 3), (4, 2, 4).

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Answer:

a = 3 , b = - 2

Step-by-step explanation:

5a + b = 17 → (1)

3a + 2b = 5 → (2)

multiplying (1) by 2 and adding to (2) will eliminate b

10a + 2b = 34 → (3)

add (2) and (3) term by term to eliminate b

13a + 0 = 39

13a = 39 ( divide both sides by 13 )

a = 3

substitute a = 3 into either of the 2 equations and solve for b

substituting into (1)

5(3) + b = 17

15 - b = 17 ( subtract 15 from both sides )

- b = 2 ( multiply both sides by - 1 )

b = - 2

then solution is a = 3 , b = - 2

The equation can be written as 2.75x + 3.10 = 27.85

The number of miles in the taxi ride is 9

The taxi company was charged a pick-up fee of $3.10

It also charges $2.75 per mile

The total fare is $27.85

The equation can be written as

2.75x + 3.10 = 27.85

Collect the like terms to get the value of x

2.75x= 27.85 - 3.10

2.75x = 24.75

divide both sides by the coefficient of x which is 2.75

2.75x/2.75= 24.75/2.75

x= 9

Hence the number of miles in the taxi ride is 9

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Answer:

x=9

Step-by-step explanation:

i did it

Answer:

0,-1 , -2 ,-3 ,-4 ,-5

Step-by-step explanation:

i think this is the answer but i can't confirm because your theory and my theory can be different

let me know if this was helpful

Answer: x<=-6 or x>=4 ==> option 2

Step-by-step explanation:

|x+1|-2>=3

|x+1|>=5

x+1>=5

x>=4

x+1<=-5

x<=-6

x<=-6 or x>=4 ==> option 2

Answer:

See below

Step-by-step explanation:

|x+1|  -2  ≥ 3      start by adding 2 to both sides

|x+1| ≥ 5      now   ....  

 x+1 >= 5              x+1 <=  -5

x  >= 4                    x <=  -6

combined         -6 >=  x >= 4

The mean of the data set is 37.30

Given that

            29, 38, 39, 26, 29, 29, 39, 77, 38, 29

To find

So, according  to the question

We have,

So, we know that

               mean = [tex]\frac{sum\;of\;\;data}{number\;of\;data}[/tex]

                   ∑ Ta =  29+ 38+ 39+ 26+ 29+ 29+ 39+ 77+ 38+ 29

                   ∑ Ta =  373

                     Tn =  10        

Now, The Mean of teachers ages

                     Tm =  [tex]\frac{sum\;of\;the\;teachers\;ages}{number\;of\;teachers}[/tex]

                     Tm =  [tex]\frac{T_a}{T_n}[/tex]

                            =  [tex]\frac{373}{10}[/tex]

                     Tm  =  37.30

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she made an error in the third step. The correct answer is - 9.7b + 25

(-4.23b + 13) - (5.47b - 12)

Therefore, let's open the bracket on the right side.

-4.23b + 13 - 5.47b + 12

Hence, let's combine the like terms

-4.23b + 13 - 5.47b + 12

-4.23b - 5.47b + 12 + 13

Do the arithmetic of the like terms

-4.23b - 5.47b + 12 + 13

- 9.7b + 25

Therefore, she made an error in the third step.

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Answer:

2.5 60÷24=2.5 so there is ur answer hope it helps

Stanley bought total 299 kilograms of rice.

To find the amount of rice in kilograms, bought by Stanley, we will perform multiplication and addition.

Weight of 1 bag = 13 kilograms

Weight of white rice = 16 × 13

Performing multiplication to calculate the weight

Weight of white rice = 208 kilograms

Weight of brown rice = 7 × 13

Performing multiplication to calculate the weight

Weight of white rice = 91 kilograms

Total amount of rice bought by Stanley = 208 + 91

Performing addition to calculate the weight

Total amount of rice bought by Stanley = 299 kilograms

Hence, Stanley bought total 299 kilograms of rice.

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Multicollinearity refers to the degree of correlation among independent variables in a regression model.

In a multiple regression model, one predictor variable can be predicted linearly from the others using a high degree of accuracy when there is a phenomenon known as multicollinearity (also known as collinearity). In this case, minor adjustments to the model or the data may cause the multiple regression's coefficient estimates to fluctuate unpredictably. Multicollinearity only impacts calculations pertaining to specific predictors; it has no impact on the predictive capability or reliability of the model as a whole, at least within the sample data set. In other words, a multivariate regression model with collinear predictors can show how well the complete set of predictors predicts the outcome variable, but it could not provide accurate information about any particular predictor or which predictors are redundant in relation to others.

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The standard form of the given number is  (5 × 10⁻³)/6.

The standard form of 0.005/6 is:

Therefore, the standard form of the given number is  (5 × 10⁻³)/6.

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Using the z-distribution, it is found that mean weights less than 135.1g and more than 144.9 would lead to a rejection of the hypothesis.

We have a two-tailed test, with a significance value of α = 0.05, hence, using a z-distribution calculator, the critical value is given by:

|z| = 1.96 -> z < -1.96 or z > 1.96.

The test statistic is given as follows:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

In which:

For this problem, the parameters are given as follows:

[tex]\mu = 140, \sigma = 15, n = 36[/tex]

The lower bound of acception is found as X when z = -1.96, hence:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

-1.96 = (X - 140)/(15/6)

-1.96 = (X - 140)/(2.5)

X - 140 = -1.96 x 2.5

X = 135.1.

The upper bound of acception is found as X when z = 1.96, hence:

[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]

1.96 = (X - 140)/(15/6)

1.96 = (X - 140)/(2.5)

X - 140 = 1.96 x 2.5

X = 144.9.

Hence:

Mean weights less than 135.1g and more than 144.9 would lead to a rejection of the hypothesis.

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Answer: 13

Step-by-step explanation:

an=a(n-1)+1

a1=10

a2=

a(2-1)+1=

a1+1=

10+1=11

a3=

a2+1=

11+1=12

a4=

a3+1=

12+1=13

a4=13

The value of the partial sum of geometric sequence with terms a3 = 36 and a6 = 288 is given by 297. This is obtained by using the concept of partial sum of a geometric progression.

What is geometric progression?

Geometric progression is defined as a series of numbers having a fixed ratio between each term and its preceding term. It is also known as a geometric sequence or G.P., and is exemplified as a1, a2, a3, ….., an

Here, the first term is denoted by a1 and its common ratio is shown by r, which is calculated using the formula a2 by a1. The partial sum of a G.P. is given by a1 ( rn - 1 ) / ( r - 1 ), when r > 1 and a1 ( 1 - rn ) / ( 1 - r ), when r < 1

Calculation of the partial sum of the geometric sequence that satisfies the given conditions. a3 = 36, a6 = 288, n = 5

Given:

Value of a3 = 36

Value of a6 = 288

n = 5

a3 = ar2           — 1

a6 = ar5

Now, a6 / a3 = ar5 / ar2 = 288 / 36

r3 = 8

Taking cube root both sides, we get,

r = 2

Putting the value of r in equation 1,

a3 = a(2)2

36 = 4a

a = 9

As r > 1, using the formula for Sn as a(rn - 1) / (r - 1)

Sn = 9(2n - 1) / (2 - 1)

Sn = 9(2n - 1)

Using n = 5, we have,

Sn = 9[(2)5 - 1]

Sn = 9(32 - 1)

Sn = 9 × 33

Sn = 297

Hence, the value of the partial sum of a G.P. is 297

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Answer:

$150

Step-by-step explanation:

The sale price is $120. We're looking for 80% of the original price, given this sale price.

[tex]120 = .8p[/tex]

[tex]p = 150[/tex]

The width of rectangle is 20 cm

As is seen in the picture, there are 6 squares at the length of rectangle and 4 squares at the width of rectangle. Also, as per the known fact, each side of square is same. So, we will find the side of square to calculate width of rectangle.

Length of rectangle = 6 × side of square

Side of square = 30 ÷ 6

Side of square = 5 cm

Width of rectangle = 4 × side of square

Width of rectangle = 4 × 5

Width of rectangle = 20 cm

Hence, the width of rectangle is 20 cm.

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A) The expression for the number of tires used to make x lane-miles of asphalt rubber is y = 2000x.

B) The number of tires used to make 11, 50, and 150 lane-miles of asphalt rubber are as follows:

y =  22000

y = 100000

y = 300000

Approximately 2000 tires are recycled to produce one lane-mile of asphalt rubber.

Therefore, an expression for the number of tires used to make x lane-miles of asphalt rubber is as follows:

y = 2000x

where;

x = number of lanes-miles

y = number of tires

Therefore, the number of tires used to make 11, 50, and 150 lane-miles of asphalt rubber are as follows:

y = 2000(11) = 22000

y = 2000(50) = 100000

y = 2000(150) = 300000

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Complete question is;

Approximately 2000 tires are recycled to produce one lane-mile of asphalt rubber.

A.Write an expression for the number of tires used to make x lane-miles of asphalt rubber.

B. Find the number of tires used to make 11, 50, and 150 lane-miles of asphalt rubber.