40 over 100 Simplify the fraction below (14 points)

Answer:

$23.31

Step-by-step explanation:

$12.95/5

=$2.59/per bag

$2.59*9

=$23.31

The minimum sample size required when you want to be 75% confident that the sample mean is within fifteen units of the population mean is 632.

The minimum sample size required can be calculated using the formula for sample size based on the margin of error.

Margin of error (ME) = z · (standard deviation of the population / square root of the sample size)

Where z is the z-score for a given level of confidence.

In this case, for a confidence level of 75%, the z-score is 1.150.

Rearranging the formula to solve for the sample size, we get:

Sample size = (z · standard deviation of the population / ME)²

Plugging in the values, we get:

Sample size = (1.150 · 327.8 / 15)²

Sample size = (376.97 / 15)²

Sample size = 25.13²

Sample size = 631.58

Since sample size must be a whole number, the minimum sample size required would be 632. This means that in order to be 75% confident that the sample mean is within 15 units of the population mean, a sample size of at least 632 is required.

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Answer:

y = 3x + 3

Step-by-step explanation:

y = -x² + 4x + 5

→ Find the vertex

- ( x - 2 )² + 4 + 5 ∴ vertex = ( 2 , 9 )

→ Find the intersection with the x axis

- ( x - 5 ) ( x + 1 ) ∴ ( - 1 , 0 )

→ Find the gradient of the 2 point

( 0 - 9 ) ÷ ( -1 - 2 ) = 3

→ Write into y = mx + c format

y = 3x + c

→ Substitute in a coordinate pair

0 = -3 + c ∴ c = 3

→ Rewrite into y = mx + c

y = 3x + 3

Answer: x = -1

Step-by-step explanation:

The problem is asking you the sum (+) of 3 times of a unknown number (let the unknown number be x) and 7, as in 3x + 7

According to the problem this expression is equal to 4,

3x + 7 = 4

1. Subtract 7 from both sides

3x = -3

2. Divide 3 on both sides

x = -1

Your final answer would be negative 1

Answer -4+X/2=7

-4+X=14

X=18

5+Y/2=-9

5+Y=-18

Y=-23

18,-23

Step-by-step explanation:

Answer:

x=18 , y. = -13

Step-by-step explanation:

\(\frac{-4 + x}{2} \\\) =7 => x = 18

\(\frac{-5 + y}{2\\} \\\) = -9 => y= -13

Answer:

Step-by-step explanation:

\(\begin{array}{c|c|c|c|c}p&q&r&p \vee q&(p \vee q)\ =>\ r\\---&---&---&---&------\\T&T&T&T&T\\T&T&F&T&F\\T&F&T&T&T\\T&F&F&T&F\\F&T&T&T&T\\F&T&F&T&F\\F&F&T&F&T\\F&F&F&F&T\\---&---&---&---&------\\\end{array}\)

The amount of money in Marianna's annuity after 6 years will be approximately $300,516.

To calculate the amount of money in Marianna's annuity after 6 years, we can use the formula for compound interest on an annuity:

A = P * ((1 + r/n)^(n*t) - 1) / (r/n)

Where:

A = the final amount in the annuity

P = the regular contribution (each quarter) = $10,000

r = annual interest rate = 8% = 0.08

n = number of compounding periods per year = 4 (since it's compounded quarterly)

t = number of years = 6

Plugging in the values:

A = 10000 * ((1 + 0.08/4)^(4*6) - 1) / (0.08/4)

Calculating this expression:

A ≈ 10000 * ((1.02)^24 - 1) / 0.02

A ≈ 10000 * (1.601032449136241 - 1) / 0.02

A ≈ 10000 * 0.601032449136241 / 0.02

A ≈ 10000 * 30.05162245681205

A ≈ 300,516.22

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Answer:

304200

Step-by-step explanation:

To find the value of P6, use the savings annuity formula

PN=d((1+r/k)N k−1)r/k.

From the question, we know that r=0.08, d=$10,000, k=4 compounding periods per year, and N=6 years. Substitute these values into the formula gives

P6=$10,000 ((1+0.08/4)6⋅4−1)/(0.08/4).

Simplifying further gives P6=$10,000 ((1.02)24−1)/(0.02) and thus P6=$304,218.62.

Rounding as requested, our answer is 304200.

9514 1404 393

Answer:

   y = -2x² +5x -11

Step-by-step explanation:

Combine the signs on the constant. The terms are already in order of descending powers of x, which is what you want for standard form.

   y = -2x² +5x -11

Answer: {x | x = –4, –1, 3, 5, 6}

Step-by-step explanation:

The domain is the set of x values, which is 3, 6, -1, 5, and -4 in this case.

Answer:

{x | x = –4, –1, 3, 5, 6} its a

Step-by-step explanation:

hope this helps

Answer:

618

Step-by-step explanation:

l x w

34x5

14x27

5x14

618

Answer:

.56

Step-by-step explanation:

Answer:

Boys 4/9 ; 5/9 Girls

Step-by-step explanation

Boys 4:5 Girls

Total pupil = 9

The fraction of boys in the class is 4/9

The fraction of girls in the class is 5/9

━━━━━━━☆☆━━━━━━━

▹ Answer

130/7

▹ Step-by-Step Explanation

When converting to improper fractions, you multiply the whole number to the denominator, then add the numerator:

18 * 7 = 126

126 + 4 = 130

Final Answer:

130/7

Hope this helps!

CloutAnswers ❁

━━━━━━━☆☆━━━━━━━

Rounding this to the nearest foot, we get that the length of the guy wire is approximately 19 feet.

Units of length may have historically been determined by the lengths of human body parts, the distance traversed in a specified number of paces, the distance between well-known sites or locations on Earth, or randomly by the length of a well-known object.

The Pythagorean theorem can be used to resolve this issue. The guy wire is the hypotenuse of a right triangle made up of the guy wire, the pole, and the ground. The formula is as follows:

Guy wire length = stake to pole length + pole length to tower length

By entering the specified values, we obtain:

Guy wire length two equals two plus nineteen, or 365.

Guy wire length = 365 + 19.10 + guy wire length

If we round this number to the next foot, the guy wire's length is roughly 19 feet.

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Answer:

440 ≤ x ≤560

Step-by-step explanation:

Answer: no the answer should have been -5 not 5 because Amanda lost more points than she gained

Step-by-step explanation:

20+(-25)=-5

Answer:

12 people per team

Step-by-step explanation:

180/15=12

Answer:

wheres it at?

Step-by-step explanation:

#Everything4Zalo

Answer:

p = - 123/10 = -123/10 = -12.3

Step-by-step explanation:

-3(0.5 + 3p) = -6(p - 5.9)

Use the distributive property to multiply -3 by 0.5 + 3p

-1.5 - 9p = -6 (p - 5.9)

Use the distributive property to multiply -6 by p - 5.9

-1.5 - 9p = -6p + 35.4

Add 6p to both sides

-1.5 - 3p = 35.4

Add 1.5 to both sides

-3p = 35.4 + 1.5

Add 35.4 and 1.5 to get 36.9

-3p = 36.9

Divide both sides by -3

p = 36.9/-3

Expand 36.9/-3 by multiplying both numerator and the denominator by 10.

p = 369/-30

Reduce the fraction 369/-30 to lowest terms by extracting and canceling out 3.

p = -123/10

Answer:

6

58

Step-by-step explanation:

The diagonals of a rectangle are congruent and bisect each other.

JL = 2JN

5x + 18 = 2(3x + 6)

5x + 18 = 6x + 12

6 = x

x = 6

NL = NK

That makes triangle KNL an isosceles triangle with congruent sides NK and NL. Opposite angles of congruent sides are congruent.

m<NKL = m<NLK

Angles NLM and NLK are complementary.

m<NLM + m<NLK = 90

32 + m<NLK = 90

m<NLK = 58

m<NKL = m<NLK = 58

Without explicitly solving for x, we can conclude that the solution to the equation 2^x - 2 = 8^4 is x = 12.

To solve the equation 2^x - 2 = 8^4 without explicitly solving for x, we can simplify the equation using exponent rules and observe the relationship between the numbers.

First, let's simplify the equation:

2^x - 2 = 8^4

We know that 8 can be expressed as 2^3, so we can rewrite the equation as:

2^x - 2 = (2^3)^4

Applying the exponent rule (a^m)^n = a^(mn), we can simplify further:

2^x - 2 = 2^(34)

Simplifying the right side of the equation:

2^x - 2 = 2^12

Now, we can observe that both sides of the equation have the same base, which is 2. In order for the equation to hold true, the exponents must be equal:

x = 12

Therefore, we may deduce that the answer to the equation 2x - 2 = 84 is x = 12 without having to explicitly solve for x.

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Answer:

3,000,000

Step-by-step explanation:

60,000,000x34%=20,400,000

60,000,000x29%=17,400,000

20,400,000-17,400,000=3,000,000

Answer:

5 ≤ L ≤ 35

Step-by-step explanation:

Let w represent the width of the rectangle.

The perimeter (P) of the rectangle is given by:

P = 2w + 2L

Where L is the length of the rectangle.

We know that w = 30 cm and that the perimeter is between 100 and 160 cm. We can now set up our compound inequality:

100 ≤ 2(30) + 2L ≤ 160

100 ≤ 90 + 2L ≤ 160

10 ≤ 2L ≤ 70

We can now divide both sides by 2 to solve for L:

5 ≤ L ≤ 35

Therefore, the compound inequality that represents the graph of a rectangle with a width of 30 centimeters and a perimeter of 100 centimeters to 160 centimeters is:  5 ≤ L ≤ 35

Using the formula of combination and the provided condition that any child can get any number of books, The answer is 637.

Combinations are mathematical operations that count the number of potential configurations for a set of elements when the order of the selection is irrelevant. We use permutation to determine how many possible ways we have to arrange items from a collection system.

The required formula is:

\(C(n,r) = \frac{n!}{r!(n-r)!}\)

where, n= total number of objects in the set.

r= number of choosing objects from the set.

from the given data, total number of books = n= 5

number of children we need to distribute, r= 10

total possible ways of distribution= C(10,1)+C(10,2)+C(10,3)+C(10,4)+C(10,5)

=10+45+120+210+252

=637

hence, we have total 637 possible ways to distribute.

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Answer:

212.50.

Step-by-step explanation:

Answer:

-5/3

Step-by-step explanation:

trust me bro

Answer:

Use desmos

Step-by-step explanation:

Basically it is a graphing calculator put your points

Answer: The answer is x\(\geq -4\)

Step-by-step explanation:

−2(x + 4) − 2x < 8

negative 2x subtract 8 subtract 2x lesser than sign 8

-2+-2=4

-4x-8< 8

add 8 to both sides

-4x< 8+8

8+8=16

-4x< 16

divide -4 on both sides

x\(\geq \frac{16}{-4}\)

divide 16 by -4 to get -4

x\(\geq -4\)

Answer: The two numbers that multiply to -65 and add to -8 are -13 and 5.

Steps: Here are the steps to find two numbers that multiply to -65 and add to -8:

Write down the equation x * y = -65 where x and y are the two numbers you’re looking for.

Write down the equation x + y = -8.

Solve for one of the variables in one of the equations. For example, solving for x in the second equation gives us x = -8 - y.

Substitute this expression for x into the first equation: (-8 - y) * y = -65.

Solve this quadratic equation for y: -y^2 - 8y + 65 = 0.

Use the quadratic formula to find the values of y: y = (-(-8) +/- sqrt((-8)^2 - 4 * (-1) * 65)) / (2 * (-1)).

This gives us two possible values for y: -13 and 5.

Substitute these values back into one of the original equations to find the corresponding values of x. For example, when y = -13, we have x = -8 - (-13) = 5. When y = 5, we have x = -8 - 5 = -13.

So, the two numbers that multiply to -65 and add to -8 are -13 and 5.