what is 40% as a decimal​

The value of the expression is 10.4

From the question, we have the following parameters that can be used in our computation:

38÷[(−2)4+|−27÷9|]−(−18).

From the innermost grouping, we have

38÷[(−2)4+3]−(−18).

Remove the inner bracket

38÷[-8+3]−(−18).

So, we have

38 ÷ [-5] + 18

Evaluate

10.4

Hence, the solution is 10.4

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Answer:

1.71 meters.

Step-by-step explanation:

To work out Jodie's height, we can use the formula for body mass index (BMI):

BMI = weight (kg) / height (m)^2

We know that Jodie's BMI is 19 and her weight is 55 kilograms. We can use this information to solve for her height.

Rearranging the formula to solve for height:

height = √(weight / BMI)

Substituting in Jodie's weight and BMI:

height = √(55 / 19)

height = √(2.89)

height = 1.71 meters

To 2 decimal places, Jodie's height is 1.71 meters.

With a Body Mass Index (BMI) of 19 and a weight of 55 kilograms, the height of Jodie is 1.70 meters.

We know,

BMI = Weight of a person in kilograms (w) .........(i)

    Square value of height in meters (h^2)

(w) = 55 Kg

BMI = 19.

Substituting the values in equation (i),

h^2 = 55/19,

or, h^2 = 2.89 meters,

or, h = √2.89 meters,

or, h = 1.70 meters.

Therefore, at a BMI of 19 and a weight of 55 Kilograms, Jodie has a height of 1.70 meters.

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y=2x-2 is the equation of the graph.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

From the given figure the points are (2, 2)(3,4)(4, 6)

m=6-4/4-3

m=2/1

slope =2

Now let us find the y intercept

4=2(3)+b

4=6+b

b=-2

y=2x-2

Hence, y=2x-2 is the equation of the graph.

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There are 5 ways that the sum of the dice be equal to 6 if a pair of distinct dice are rolled one time

It is the ordered arrangement of members belonging to a set with no repeats.

Analyzing the possibilities for the sum of the dice be equal to 6, assuming that each die has six sides:

Red die = 6 sides

Blue die = 6 sides

The possibilists are:

(Bleu, red)

(1,5)

(2,4)

(3,3)

(4,2)

(5,1)

There are 5 ways to get at sum of 6 if a pair of distinct dice are rolled one time

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For given pie chart, 600 sixth graders were surveyed.

What is a pie chart?

The “pie chart” is also known as a “circle chart”, dividing the circular statistical graphic into sectors or sections to illustrate the numerical problems. Each sector denotes a proportionate part of the whole. A pie chart requires a list of categorical variables and numerical variables. To find out the composition of something, Pie-chart works the best at that time. In most cases, pie charts replace other graphs like the bar graph, line plots, histograms, etc.

The total value of the pie is always 100%.

Now,

Given percentage of 6th graders that own birds=5%

and no. of birds they own=30

that means 1% birds are owned by 6 students.

Therefore for 100% students= 6*100=600 6th graders.

Hence,

          For given pie chart, 600 sixth graders were surveyed

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The average rate of change for this function for the interval from x = 2 to x = 4 is 6.

A function is an equation with just one solution for y for every x. A function produces exactly one output for each input of a certain type. Instead of y, it is usual to call a function f(x) or g(x). f(2) indicates that we should discover our function's value when x equals 2. A function is a relationship between a set of inputs and a set of allowable outputs that has the condition that each input is associated to precisely one output. Let A and B be any two non-empty sets; mapping from A to B is only a function if every element in set A has one end and only one image in set B.

Here,

The average rate of change for this function between x = 2 and x = 4 is 6.

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Let x be the number of child tickets sold on Wednesday. Then, the number of adult tickets sold can be represented as 156 - x.

The total amount of money generated from the sale of child tickets is 5.80x, and the total amount of money generated from the sale of adult tickets is 9.70(156 - x). The total sales for the day were $1290.90, so we can set up the following equation:

5.80x + 9.70(156 - x) = 1290.90

Expanding the right-hand side and solving for x, we can isolate x:

5.80x + 1481.20 - 9.70x = 1290.90

-4.90x + 1481.20 = 1290.90

-4.90x = -190.30

x = 39

So, 39 child tickets were sold on Wednesday.  This is because the total number of tickets sold is 156, and since we know the number of child tickets sold, we can calculate the number of adult tickets sold by subtracting the number of child tickets from the total.

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The probability of filling an order between day 3 and 5 is 0.67, or 67%.

The time it takes a wholesaler to fill an order follows a uniform distribution from three to six days. To find the probability that they will fill an order between day 3 and 5, we need to calculate the cumulative probability of the uniform distribution between these two values.

The cumulative probability of a uniform distribution between two values a and b is given by:

P(a <= X <= b) = (b - a) / (max - min)

Where X is a random variable representing the time it takes to fill an order, min is the minimum value of the distribution (3 days), and max is the maximum value of the distribution (6 days).

So, for the uniform distribution between 3 and 5 days, the cumulative probability is:

P(3 <= X <= 5) = (5 - 3) / (6 - 3) = 2 / 3 = 0.67

This means that the probability of filling an order between day 3 and 5 is 0.67, or 67%. In other words, the wholesaler has a 67% chance of filling an order between day 3 and 5.

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Answer:

y = 5

Step-by-step explanation:

The equation is y = mx + b

m = the slope

b = y-intercept

Because the slope is 0 and the y-intercept is 5, our equation will be

y = 5

The inequality for the range of the possible length for the third side is  100<x<500.

Inequalities can be defined as expressions that involve the use of symbols such as >, <, ≥, and ≤. In order to solve an inequality, we need to find what is called its range, or ranges, which are values that can satisfy the given inequality.

We already know that no side of a triangle can exceed the sum of the other two sides. The third side needs to be less than 500 (300 + 200) and greater than 100 ( 300 - 200)

So, our inequality is ⇒ 100<x<500.

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The constant of proportionality is 6.

The constant of proportionality is the ratio that relates two given values in what is known as a proportional relationship. It is also known as unit rate and it is usually expressed by k.

Mathematically, k = y/x.

To find the Constant of Proportionality, pick any point from the graph. That is:

Point (20, 120). Thus, x = 20, y = 120  

Constant of Proportionality (k) = y/x

k = 120/20 = 6

The graph is proportional because the Constant of Proportionality of nay point on the graph is the same.

What I see is that the graph starts from the origin. That is the initial value of x and y are zero.

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Answer: To determine what fraction of the cake is left convert the cake to 8ths which is 8/8. Subtract;. 8/8–7/8=1/8. The fraction left is 1/8.

7 answers

·

4 votes:

Let’s identify all the quantities here. [math]\frac{5}{8}[/math] is what all the g

Step-by-step explanation:

The  solution to this system of equations −4x+9y = 9 and x−3y = − 6 is,

(10, 5)

By using the substitution method, the solution to this system of equations −3x + 3y = 4  and −x + y = 3 is, No solution

The equation of a straight line is a relationship between x and y coordinates, The general equation of a straight line is y = mx + c, where m is the slope of the line and c is the y-intercept.

Given that,

System of equation,

−4x + 9y =   9

 4x − 4×3y = − 4×6   (multiplying equation by 4)

 0  - 3y   = -15

         y  =  5

−4x + 9×5 = 5

-4x  = -40

  x  =  10  

Second, system of equations

By substitution method,

−3x + 3y = 4

 −x  +  y  =   3      

Both the lines are parallel ,

so they will never intersect each other

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Answer:36

Step-by-step explanation:

Answer:

Step-by-step explanation:

A proportional relationship between two variables, x and y, is such that there is a constant of proportionality, k, that exists between the two variable, such that, y = kx.

Constant of proportionality (k) = y/x.

9) The relationship is proportional because 18% of dinner bill is being donated to local schools

So 18% of 50 is 9

So out of $50 of dinner bill, $9 will go towards donation.

10) No, the relationship is not proportional.

The cost of mailing6-ounce letter cannot be determined

Answer:

The correct answer is the second alternative!

The graph of the set of inequalities is given in attachment.

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

4x+8y is less than or equal to 8 and  5x+y is less than or equal to 10

4x+8y≤8

5x+y≤10

40x+8y≤80

40x+8y-4x-8y≤80-8

36x≤72

x≤72/36

x≤2

and now plug in x value

4(2)+8y≤8

8y≤0

y≤0

Hence, the graph of the set of inequalities is given in attachment.

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what went wrong

the student did not cross multiply, and instead multiplied within each fraction.

rework the problem

mx24=8x15

m=120/24

m= 5

helpful strategy

draw a line from each value to the one you're multiplying it by

practice problems

12/z = 15/20

Answer:

54 is the answer of pradnya age

The missing value is -3 = 7- 10.

Integers come in three types:

Given:

We have -3 = 7 - x

As, we know from the integers when we perform addition and subtraction in integers the answer will get the sign of larger number.

Here -3 shows the larger number is negative number.

But here we have 7 as positive integer which shows x > 7.

So, -3 = 7- x

-3-7 = -x

-10 = -x

x= 10

thus, we can write -3 = 7-10

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The toy cars Anna must sell for her revenue to equal her expense is 4 toy cars. The result is obtained by using the concept of calculating algebra.

To calculate the algebra with one variable, sum up all the same variable and count the value.

Anna want to sell toy car at a craft fair. Each car is sold at a price of $ 12. The material for each car cost $ 3.50 and the table rental at the fair is 34 dollar for the day.

Find the toy cars must Anna sell for her revenue to equal her expense!

We have

Let's say

Revenue = Expense

a × $12 = (a × $3.5) + $34

12a = 3.5a + 34

12a - 3.5a = 34

8.5a = 34

a = 4 toy cars

Hence, Anna must sell 4 toy cars so that her revenue is equal to expense.

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(a) The probability that the other person is shorter than x is = 1/2

(b) The probability that the first person chosen is shorter than x is 1/2.

(a) If we know that at least one person is taller than x, then there are two cases to consider:

The first person chosen is taller than x:

In this case, the probability of the second person being shorter than x is 1/2.

The second person chosen is taller than x:

In this case, the probability of the first person being taller than x is 1/2.

The total probability that at least one person is taller than x and the other person is shorter than x is the sum of these two cases:

P = (1/2) * (1/2) + (1/2) * (1/2)

= 1/2

(b) If we know that the person chosen second is taller than x, then the only possibility is that the first person chosen is shorter than x.

The probability of this happening is 1/2.

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True, x-1 is a factor of P(x) = 17x¹² + 8x⁵ – 25.

A polynomial is a type of algebraic expression in which the exponents of all variables should be a whole number.

Given function

P(x) = 17x¹² + 8x⁵ – 25

P(1) = 0

By the Remainder Theorem,

Dividend = Divisor * Quotient + Remainder

P(x) = (x – 1). Q(x) + P(1)

P(1) = 0

P(x) = (x – 1). Q(x)

Hence, x-1 is a factor of P(x).

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Reason: Divide both sides by 2. The inequality sign stays the same. The only time it flips if you divided both sides by a negative value.

The graph involves an open hole at 4 with shading to the left. The open hole means "exclude this value from the shaded solution set".

Answer:

Step-by-step explanation:

we have 1.33 cubic yards in 1 cubic meter,
we should find how many cubic meters equals 150 cubic yards.
so for 1.33 =1
          150=x
now , we cross multiply
x=150/1.33
x=112.78 that is the answer

The midline of the graph is a horizontal line with y = 8.5.

The midline of a sinusoidal graph is the average of its maximum and minimum values, which represents the average height of the graph over one period. To find the midline, we need to find the average of the y-values of the maximum and minimum points.

The maximum point is (4,12) and the minimum point is (11,5), so the average of the y-values is (12+5)/2 = 8.5. This represents the y-intercept of the midline, which is a horizontal line. Therefore, the midline of the graph is a horizontal line with y = 8.5.

The midline of a sinusoidal graph separates the graph into two parts: the portion above the midline, where the graph is increasing, and the portion below the midline, where the graph is decreasing. The midline also provides important information about the amplitude and frequency of the graph.

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The probability of a 6-card hand with three hearts and three spades is 0.001862, or 1/535

Probability is the mathematics of chance; it is the study of calculating the likelihood of certain outcomes in any given situation.

Here we have to find the probability of a particular 6-card hand consisting of three hearts and three spades is determined first by the fact that there are 13 hearts and 13 spades in a standard deck of 52 cards.

To calculate the probability of a 6-card hand consisting of three hearts and three spades, one must first consider that the order of the cards in a hand does not matter.

The total number of combinations of three hearts and three spades that can be drawn from a standard deck of cards is

=> 4,824.

This number can be calculated by an equation that uses the number of hearts, spades, and cards in a standard deck

=> (13 x 13 x 52).

Then the probability of a 6-card hand consisting of three hearts and three spades is calculated by dividing the number of combinations of three hearts and three spades

=>  (4,824) / (2,598,960).

This equation yields a probability of 0.001862, or a 1 in 535 chance of getting a 6-card hand with three hearts and three spades.

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For all values of x that satisfy |x| < 1/2, |cos(x) - (1 - x^2/2)| is less than or equal to a very small positive number.

The Taylor series for cos(x) is:

cos(x) = 1 - x²/2 + x⁴/4! - x^6/6! + ...

So, if |x| < 1/2, then:

|cos(x) - (1 - x²/2)| = |x²/2 - x⁴/4! + x⁶/6! + ...|

This expression on the right-hand side is a sum of absolute values of the terms in the Taylor series expansion of cos(x), which are all positive for |x| < 1/2. Therefore, the absolute value of the expression on the right-hand side is less than or equal to the sum of all of these positive terms, which approaches 0 as x approaches 0.

Therefore, for all values of x that satisfy |x| < 1/2, |cos(x) - (1 - x²/2)| is less than or equal to a very small positive number.

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The maximum mortgage payment allowed for someone with an annual salary of $56,750 is $1891666.

According to the 28/36 guidelines, 28% of your gross monthly income should be spent on housing finances, and 36% of your total monthly income can be considered debt-free income.

Allow Total gross monthly income to equal $ x

The debt amount is $ 56,750.

So, 36% of x = $ 56,750

36x/100 = 56,750

x = 56,750 x 100 / 36

x = 157638.8

Annual income = 12 x 157638.8

= 1891665.6

= $1891666

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