2 less than a number is 7

Answer:

c-9

Step-by-step explanation:

Answer:

Hello! answer: there are 7 quarters which are worth 25 cents each 6 dimes which are worth 10 cents each

there are 5 nickels which are worth 5 cents each and there are 8 pennies which are worth 1 cent each

the total value off all of these together is $2.68

The  unitary method equation below can be used to calculate the expense of strawberries for each friend: Cost equals Unit Price  Quantity. where a pound's worth of product costs $1.25.

The unit method is a strategy for solving issues that entails first figuring out the value of just one unit, and subsequently multiplying that number to figure out the needed value. Simply stated, the unit method is used to determine only one value via a multiple that is supplied. For example, 40 pens might run you 400 rupees, which is equal to the expense of one pen. This procedure might follow a conventional procedure. a distinct nation. anything with a distinct character. Its adjoint and equivalent are identical in terms of mathematics, algebra, linear equations, mathematical analysis, or math of matrices or operators.

The cost per unit of a specific object is its unit price. The measure in this instance is one pound (lb) of strawberries.

The unit amount for the 2 pounds of strawberries that Akio purchased for $2.50 is:

$1.25 per pound x $2.50 x 2 pounds

Gordon spent $3.75 on 3 pounds of strawberries, so his strawberry price per unit is:

$3.75 x 3 pounds equals $1.25 per pound.

The unit price for Maria's strawberries is $5.00 for 4 pounds of strawberries, which equals:

$5.00 x 4 lbs equals $1.25 per pound

The equation below can be used to calculate the expense of strawberries for each friend:

Cost equals Unit Price  Quantity.

where a pound's worth of product costs $1.25.

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Answer:

Following are the solution to this question:

Step-by-step explanation:

Given:

\(\ Mean = 0.54 \times 555 \\\)

           \(= 299.7\)

\(SD = 11.74\)

In point a:

\(\to Z = \frac{(338 - 299.7)}{11.74}\)

       \(= \frac{(38.3)}{11.74}\\\\= 3.26\)

\(\to P = 0.000557\\\\\to \% = 0.06 \%\)

In point b:

\(\to Z = \frac{(285 - 299.7)}{11.74}\)

       \(= \frac{(-14.7)}{11.74}\\\\= -1.25\\\)

\(\to P = 0.8944\\\\\to \% = 89.44 \%\)

In point c:

\(\to 48\% \times 555 = 266.4\\\\\to Z = \frac{(266.4 - 299.7)}{11.74}\\\\\)

       \(= \frac{(-33.3)}{11.74}\\\\= -2.83\)

\(\to P = 0.002256\\\\\to \% = 0.23 \%\)

The area of the shaded region of the rectangle is approximately 573.92 square feet.

The figure in the image is that of a rectangle with a semi-circle inscribed in it.

The area of rectangle is expressed as:

Area = Length × Width

The area of semi-circle is expressed as:

Area = 1/2 × πr²

To determine the area of the shaded region, we simply subtract the area of the semi-circle from the area of the rectangle.

Area of shaded region = area of rectangle - area of semi-circle

Area of shaded region = ( Length × Width ) - ( 1/2 × πr² )

From the image:

Length = 40 ft

Width = 20 ft

Radius r = 12 ft

Plug the values into the above formula:

Area of shaded region = ( Length × Width ) - ( 1/2 × πr² )

Area of shaded region = ( 40 × 20 ) - ( 1/2 × 3.14 × 12² )

Area of shaded region = ( 800 ) - ( 226.08 )

Area of shaded region = 573.92 ft²

Therefore, the area is approximately 573.92 square feet.

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The LCM of 4 and 6 is 12.

Least Common Multiple is a mathematical term. The smallest number that is a multiple of both of two numbers is called the least common multiple.

For example, common multiples of 4 and 6 are 12, 24 and 36, but the lowest of those is 12; therefore, the lowest common multiple of 4 and 6 is 12.

Given:

4: 2 x 2

6: 2 x 3

Now, as there is one 2 common in both then it will be written for one time.

and the rest uncommon numbers are written as same as well.

So, LCM( 4, 6)= 2 x 2 x 3 = 12

Hence, the LCM of 4 and 6 is 12.

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Answer:

\(Probability = 0.1216\)

Step-by-step explanation:

Given

\(n = 20\)

Represent fraudulent with p

\(p = 10\%\)

\(p = 0.10\)

Required

Determine the probability that none are fraudulent

First, we need to determine the proportion of those that are not fraudulent.

Represent this with q

\(p + q= 1\)

\(10\% + q = 1\)

\(q = 1 - 10\%\)

\(q = 90\%\)

\(q = 0.9\)

The required probability is binomial and can be determine using the following:

\((p + q)^n = ^nC_xp^xq^{n - x}; x = 0,1,2...n\)

In this case x = 0 (none);

So, the required probability is:

\(Probability = ^nC_0p^0q^{n - 0}\)

Substitute values for n, p and q

\(Probability = ^{20}C_0 * 0.1^0 * 0.9^{20 - 0}\)

\(Probability = ^{20}C_0 * 0.1^0 * 0.9^{20}\)

\(Probability = ^{20}C_0 * 1* 0.9^{20}\)

\(Probability = \frac{20!}{(20 - 0)!20!} * 1* 0.9^{20}\)

\(Probability = 1 * 1* 0.9^{20}\)

\(Probability = 0.9^{20}\)

\(Probability = 0.12157665459\)

\(Probability = 0.1216\) Approximated

Answer:

Step-by-step explanation:

D:(0,10)

R:(14, infinitly)

The value of g, for a  30-sided regular polygon has an angle measure represented as 6g° is calculated to be 28

The problem is solved using the formula for number of angles for n sided polygon

The formula is (n - 2)180

where n = number of sides

for 30-sided polygon the angles is solved as below

= (n - 2)180

= ( 30 - 2 ) * 180

= 28 * 180

= 5040

this is represented as 6g

each angle is measured 5040 / 30 = 168

6g = 168

g = 28

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Answer: 28

Step-by-step explanation: 168 is the whole polygon, so 6 times 28 is 168 therefore its correct, btw i also did the test

Answer: true

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Answer:

It might be a trick question but if not, it is false.

Step-by-step explanation:

If you look closely you can see that L' is 4 units above the x-axis and not 3.

Answer:

x < -3 or x > 2

Step-by-step explanation:

x² + x - 6 > 0

Convert the inequality to an equation.

x² + x - 6 = 0

Factor using the AC method and get:

(x - 2) (x + 3) = 0

If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.

x - 2 = 0

x = 2

x + 3 = 0

x = -3

So, the solution is x < -3 or x > 2

Answer:

45

Step-by-step explanation:

9 ÷ 1/5

9 × 5/1

9 × 5

45

Answer:

A. \(n=100\)
B. \(k=0\)

Step-by-step explanation:

A. The equation "110% n = 11" can be solved as follows:

110% n = 11

To solve for n, we need to get rid of the percentage sign (%). We can do this by dividing both sides of the equation by 110%, or 0.110 (since 110% is equivalent to 1.1 in decimal form).

(110% n) / 110% = 11 / 110%

n = 11 / 0.110

n = 100

So, the solution for n in the equation "110% n = 11" is n = 100.

B. The given equation is:

(328 x 128) x k = 328 x (82 x 128) x k

To solve for k, we can simplify the equation using the properties of multiplication.

Step 1: Perform the multiplications inside the parentheses:

41984 x k = 328 x 10576 x k

Step 2: Rearrange the equation by applying the associative property of multiplication:

41984 x k = 328 x (10576 x k)

Step 3: Divide both sides of the equation by 328:

(41984 x k) / 328 = 10576 x k

Step 4: Cancel out the common factor of k on the left-hand side:

(41984 / 328) x k = 10576 x k

Step 5: Simplify the left-hand side:

128 x k = 10576 x k

Step 6: Subtract 10576 x k from both sides of the equation to isolate k:

128 x k - 10576 x k = 0

Step 7: Factor out k on the left-hand side:

k x (128 - 10576) = 0

Step 8: Simplify further:

k x (-10448) = 0

Step 9: Divide both sides of the equation by (-10448):

k = 0

So, the solution for k in the equation "(328 x 128) x k = 328 x (82 x 128) x k" is k = 0.

Answer:

Step-by-step explanation:

A coin of 25 grams contains 16 grams of copper.

Then a coin hundred grams contains (100×16)/25 = 64 grams of copper.

Hence the percentage of copper in the coin is 64%.

*I hope that this answer will help you.

Step-by-step explanation:

nickel is  9 grams out of (9 + 16) = 25 grams by weight

    9 is what percent of 25?

            9 / 25  * 100% =    36%

Answer:

c.) in the correct answer

Answer:

Explanation:

Here, we want to get the value of m

To solve this, we will only use the first and last values

Mathematically, we have that as:

Answer:

The answer is 39 students  

Step-by-step explanation:

We have that, how long it will take for Liu to catch Mariel is mathematically given as

t=3.076s

From the question we are told

Mariel and Liu are running a long-distance race. Mariel runs at a rate of 5.4 m/s, and Liu runs at a rate of 7.6 m/s. If Mariel has a 20 m head start, how long will it take for Liu to catch Mariel?

Generally the equation for the Average speed is  mathematically given as

\(v_a=\frac{5.4+7.6}{2}\\\\V_a=6.5m/s\)

Therefore

How long it will take for Liu to catch Mariel is mathematically given as

\(t=\frac{20}{6.5}\)

t=3.076s

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After 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent \(\rm y = a^x\)

where a is a constant and a>1

We have:

The number of research papers in Dr. Carey's area of expertise has been increasing by 3% every year.

We are assuming there is exponential increase.

So,

After 2 years the published research papers (a)

a = 34,176(1 + 0.03)²

Because increasing by 3%(0.03) every year.

a = 34176(1.03)²

a = 36257.31 ≈ 36257 research papers

Thus, after 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.

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Answer:

Hope I helped!~

Step-by-step explanation:

To find the equation of the line, we can use the slope-intercept form of the equation:

y = mx + b

where m is the slope of the line and b is the y-intercept.

Using the two data points given, we can calculate the slope:

m = (11.25 - 8.35) / (1995 - 1993) = 1.95

To find the y-intercept, we can use one of the data points:

8.35 = 1.95(1993) + b

b = -3884.65

So the equation of the line is:

y = 1.95x - 3884.65

To predict the price of a box of two pieces on July 1, 1999, we can substitute x = 6 (since 1999 is 6 years after 1993) into the equation:

y = 1.95(6) - 3884.65

y = 11.7 - 3884.65

y = -3872.95

This gives us a negative price, which obviously does not make sense. It is likely that the price of a box of two pieces was not linearly increasing during this time period, or that there were other factors influencing the price. Therefore, we cannot use this equation to accurately predict the price of a box of two pieces on July 1, 1999.

The angle measures for this problem are given as follows:

The sum of the measures of the internal angles of a triangle is of 180º.

The triangle in this problem is ABC, hence the measure of a is obtained as follows:

a + 68 + 50 = 180

a = 180 - (68 + 50)

a = 62º.

c and d are corresponding angles to angle a, as they are on the same position relative to parallel lines, hence their measures are given as follows:

Angle b is a corresponding interior angle with angle a, hence they are supplementary and it's measure is given as follows:

a + b = 180

62 + b = 180

b = 118º.

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Therefore, the interquartile range for the given data set is 27.5.

The interquartile range (IQR) is a measure of variability or spread of a set of data. It is calculated as the difference between the upper quartile (Q3) and the lower quartile (Q1) of a dataset. The quartiles divide the dataset into four equal parts, with each part containing an equal number of data points. The lower quartile (Q1) is the median of the lower half of the dataset, and the upper quartile (Q3) is the median of the upper half of the dataset.

Here,

To find the interquartile range (IQR), we first need to find the median of the data set. The median is the middle value when the data set is arranged in order. To arrange the data set in order, we have:

6, 12, 14, 15, 15, 20, 35, 48, 87

The median is the middle value, which is 15.

Next, we need to find the median of the lower half of the data set (also called the first quartile or Q1). To do this, we take the median of the values below 15:

6, 12, 14, 15, 15

The median of this set is 14.

Similarly, we need to find the median of the upper half of the data set (also called the third quartile or Q3). To do this, we take the median of the values above 15:

20, 35, 48, 87

The median of this set is (35+48)/2 = 41.5.

Finally, the interquartile range is the difference between Q3 and Q1:

IQR = Q3 - Q1

= 41.5 - 14

= 27.5

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Answer:

24

Step-by-step explanation:

43-19 =24

Please let me know if I am wrong.

Answer:

14

Step-by-step explanation:

3 1/2= 3.5

so...

3.5*4=14

Answer:

14

Step-by-step explanation:

7 / 2 × 4

7 × 2

14

hope it helps!

Answer:

B only

Step-by-step explanation:

Triangles A and C are similar, but not congruent to each other. Similar triangles have proportional sides and congruent angles, while congruent triangles have congruent sides and congruent angles.

Therefore, only B is correct

The question is asking for pairs of congruent triangles but lacks key information needed to accurately answer this, such as lengths or angles. Congruent triangles are identified in geometry based on either side-lengths or angles.

The question is about congruent triangles, which in mathematics means triangles that have the same size and shape. But to accurately answer which pairs show two congruent triangles, we need more information. The options provided include 'A', 'B', and 'C' but without knowing more about these elements (for example their lengths or angles), it is impossible to determine which are congruent. Congruent triangles are identified in geometry based on either side lengths (SSS: Side-Side-Side, SAS: Side-Angle-Side, ASA: Angle-Side-Angle) or angles (AAS: Angle-Angle-Side, HL: Hypotenuse-Leg for right triangles). Without this vital information, we cannot definitively answer the question. Be sure to verify all the properties required to prove two triangles congruent.

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Answer:

9

Step-by-step explanation:

5x-3= 2x+24

5x=2x+27

3x=27

X=9

Answer: A.  9

Step-by-step explanation:

The diagonal is bisected by the other diagonal.  So the 2 parts of the diagonal are equal

5x - 3 =  2x + 24                 >Bring like terms to 1 side

3x = 27                                >Divide both sides by 3

x = 9