Ming li spent $15 at the movies. She then earned $30 babysitting. She spent $12 at the bookstor. She now has $18 left. How much money did ming li have to begin woth

The Julián has 0.84 euros left after making these purchases.

Given that Julián spends 2/5 of his savings on a school trip, and 25% of his savings on skates. The question is asking us to find out how much the skates cost and how much money he has left after making these purchases. Let's solve this problem step-by-step.

Part (a) is already solved as we know that Julián spends 2/5 of his savings on a school trip and 25% of his savings on skates.

Part (b) To determine how much the skates cost, we need to first find out what percentage of his savings he spent on skates. Since he already spent 2/5 of his savings, that means he has 3/5 left.

And since he spent 25% of his total savings on skates, we can set up an equation as follows:

0.25(x) = 3/5where x is his total savings.

Cross-multiplying: 0.25(x) * 5 = 3x1.25x = 3x = 3/1.25x ≈ 2.4So, his total savings would be around 2.4 euros.

Therefore, the cost of the skates is 0.25(2.4) = 0.6 euros.Part (c) To find out how much money he has left, we subtract the cost of the school trip and the skates from his total savings:

Total savings - School trip - Skates

= Money left2.4 - (2/5)(2.4) - 0.6

= Money left2.4 - 0.96 - 0.6

= Money left0.84 euros

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The number of more does one of the heaviest bags weigh than one of the lightest bags filled by James with apples is 5/4.

The dot plot is the way of representation of the data. This data is plotted in the form of points or dots over an x-y axis. The dot plot is also known as the strip plot.

The number of more does one of the heaviest bags weigh than one of the lightest bags filled by James with apples is

James filled a number of bags with apples when he went apple picking. He recorded the weight of each bag. This line plot shows his results.

In the line plot, in the 6th section, we get the highest value as 5 1/2. Similarly, the lowest value in the line plot is 4 1/4.

The difference between these values is,

\(d=5\dfrac{1}{2}-4\dfrac{1}{4}\\d=\dfrac{5\times2+1}{2}-\dfrac{4\times4+1}{4}\\d=\dfrac{10+1}{2}-\dfrac{16+1}{4}\\d=\dfrac{11}{2}-\dfrac{17}{4}\\d=\dfrac{11\times2-17}{4}\\d=\dfrac{5}{4}\)

Thus, the number of more does one of the heaviest bags weigh than one of the lightest bags filled by James with apples is 5/4.

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Answer:

you now if you wont to find the value you can type distance calculator and see the points

Step-by-step explanation:

Answer: 0.07

Step-by-step explanation:

To find the relative frequency of people in the sample whose place of residence is suburban and whose highest degree is a two-year degree, we need to calculate the ratio of the number of people with those characteristics to the total sample size.

Looking at the contingency table, we can see that the number of people in the suburban category with a two-year degree is 21.

The total sample size is given as 311.

Therefore, the relative frequency can be calculated as:

Relative frequency = (Number of people in suburban category with two-year degree) / (Total sample size)

= 21 / 311

≈ 0.0676

Rounded to two decimal places, the relative frequency is approximately 0.07.

The system of equations represented by the graph is:

y = x - 6

y + x = -2

And the solution is (2, -4), then the correct option is the first one.

On the graph, we can see a system of linear equations, we can see a line with a positive slope and a line with a negative slope.

The line with a positive slope intercepts the y-axis at y = -6, then that line is:

y = a*x - 6

with a > 0.

The other line passes through the y-axis at y = -2, then the linear equation is:

y = b*x - 2

Where b < 0.

Also, remember that the solution for the system of equations is the point where the two lines intersect, so we can see that the solution is at (2, -4)

The only option that meets all the criteria is the first option:

y = x - 6

x + y = -2

And the solution is (2, -4)

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Answer:

The sum of the first ten terms is -35.

Step-by-step explanation:

The first term of an arithmetic sequence is 10, and its common difference is -3.

We want to find the sum of the first 10 terms of this sequence.

Remember that the sum for an arithmetic sequence is given by:

\(\displaystyle S=\frac{k}{2}\left(a+x_k\right)\)

Where k is the number of terms, a is the initial/first term, and x_k is the last term.

Since our initial term is 10, a = 10.

And since we want to find the sum of the first ten terms, k = 10.

So, we will need to find the last or tenth term. We can write an explicit formula. The standard explicit formula for an arithmetic sequence is:

\(x_n=a+d(n-1)\)

Where a is the initial term and d is the common difference.

So, by substituting, we acquire:

\(x_n=10-3(n-1)\)

Then the tenth or last term is:

\(x_{10}=10-3(10-1)=10-3(9)=10-27= -17\)

Then the sum of the first ten terms will be:  

\(\displaystyle S_{10}=\frac{10}{2}(10+(-17))=5(-7)=-35\)

Answer:

-35

Step-by-step explanation:

\(a_{1}\) = 10+(-3)(0) = 10

\(a_{10}\) = 10+(-3)(9) = -17

\(S_{10}\) = 10[(10 -17)/2] = 10(-7/2) = -70/2

Answer:

8.9 miles

Step-by-step explanation:

well, you got 2 points with their coordinates on the grid if the city. to make it easy, the origin = point (0,0) is also the center of the city.

the school is 4 miles east = 4 units plus to the right in positive x direction.

and 2 miles south = 2 units down in negative y direction.

so, the point school is (4, -2).

the pool is 8 miles east = 8 units plus to the right in positive x direction.

and it is 6 miles north = 6 units up in positive y direction.

so, the point pool is (8, 6).

now we need to find the distance between both points to see how far they need to travel.

just one remark : this is flawed, as we can usually not make a beeline in a city from one place to another. we have to go along streets. but let's ignore that and just find the air distance.

now, to find the direct distance between 2 points, we need Pythagoras for right-angled triangles

c² = a² + b²

c = the Hypotenuse, the baseline opposite of the 90 degree angle. = the direct distance between the 2 points.

a and b are the sides of a right-angled triangle, which are nothing else than the differences of the x and y coordinates of the 2 points.

the x difference between school and pool is 8-4 = 4.

the y difference between school and pool is 6 - -2 = 6 + 2 = 8.

don't worry, if you did it the other way around and got negative numbers. remember that in the Pythagoras formula everything has to be squared first (and that turns also negative numbers into positive ones).

so, we get

c² = 4² + 8² = 16 + 64 = 80

c (the distance) = sqrt(80)

"sqrt" is the usual abbreviation of "square root".

sqrt(80) ≈ 8.9 miles

Answer:

481

Step-by-step explanation:

The exact values of the trigonometry functions in the intervals π/2 < ∅ < π and 0 < ∅ < π/2 are -24/25 and 24/25, respectively

Trigonometry function 1

Given that

sin(∅) = 4/5 and the interval is π/2 < ∅ < π

The trigonometry function cos(2∅) is calculated as

cos(2∅) = 2sin(∅)cos(∅)

In the interval is π/2 < ∅ < π, we have

cos(∅) = -3/5

This means that

cos(2∅) = 2 * 4/5 * -3/5

cos(2∅) = -24/25

Trigonometry function 2

Given that

sin(∅) = 4/5 and the interval is 0 < ∅ < π/2

The trigonometry function cos(2∅) is calculated as

cos(2∅) = 2sin(∅)cos(∅)

In the interval is 0 < ∅ < π/2, we have

cos(∅) = 3/5

This means that

cos(2∅) = 2 * 4/5 * 3/5

cos(2∅) = 24/25

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Answer:

t=p*34

Step-by-step explanation:

t=p*T, where T is the bill for the table Joe waited on, p is the percent tip and t is the tip left for the waiter

In this situation, the bill is 34, so lets plug that in

t=p*34

The missing reasons used in solving the given inequality are;

Reason 2; Subtraction property

Reason 3; Subtraction property of order

Reason 5; Division property of order.

There are different properties of algebra such as distributive property, commutative property, associative property, addition property, division property e.t.c

We are given the inequality as;

−2(x + 3) − 4 > 4x + 30

Step 1;

-2x - 6 - 4 > 4x + 30

Reason 1; Distributive property

Step 2; -2x - 10 > 4x + 30

Reason 2; Subtraction property

Step 3; -6x - 10 > 30

Reason 3; Subtraction property of order

Step 4; 6x > 40

Reason 4; Addition property of order

Step 5; x < -20/3

Reason 5; Division property of order.

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Step 1) Set up a proportion to find how much Peter spent

45 cards / x dollars = 3 cards / 2 dollars

Step 2) Cross-multiply to solve the proportion

3x = 90

x = $30

Step 3) Set up a proportion to find how much Peter made

45 cards / x dollars = 5 cards / 4 dollars

5x = 180

x = $36

Step 4) Subtract the amount Peter made by the amount he spent

36 - 30 = $6

Answer: Peter made $6

($2/3) * 45 = $30

($4/5) * 45 = $36

$36 - $30 = $6

The decimal that represents the unshaded pοrtion of the mοdel is 0.

A fractiοn is a ratiο between twο amοunts οr a numerical representatiοn οf a pοrtiοn οf a whοle. It is written as a ratiο οf twο integers, where the numeratοr, οr tοp number, denοtes the pοrtiοn οr ratiο being evaluated, and the denοminatοr, οr bοttοm number, denοtes the entire οr sum.

we know that  

Camille shaded 18/30 of a model

That means

The total parts of the model is equal to 30

The shaded parts of the model is 18

To find out the unshaded parts of the model subtract the shaded parts from the total parts

30 - 18 = 12

and

12/30

= 0.4

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Complete question:

Camille shaded 18/30 of a model. Write the decimal that represents the unshaded portion of the model

The value of the expression is -4

The cube root of a number can be defined as the factor multiplied by three times by itself  to get that number.

Cube root is represented using the formula, '∛'

From the information given,

c³ = -64

Take the cube root of both sides

∛c³ = ∛ - 64

c = - 4

Thus, the value of the expression is -4

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The variable 'c' in the given expression has No Solution.

Given, that

2/3c - 1 = 1 + 2/3c

Now, as we have same coefficient of the variable c i.e. 2/3

So, On subtracting 2/3c from both the sides, we get

2/3c - 2/3c - 1 = 1 +2/3c - 2/3c

-1 ≠ 1

Hence, we got no solutions that can satisfy the given expression.

So, the variable 'c' in the given expression has No Solution.

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Answer:

Simple interest is calculated on the principal, or original, amount of a loan. Compound interest is calculated on the principal amount and also on the accumulated interest of previous periods, and can thus be regarded as "interest on interest."

Answer:

50

Step-by-step explanation:

because forty is eighty percent of 50

The polynomial expression that represents the perimeter is (3x^3 +3x -148)ft and the value is 182ft

Polynomials are algebraic expressions that consist of variables and coefficients. Variables are also sometimes called indeterminates. We can perform arithmetic operations such as addition, subtraction, multiplication, and also positive integer exponents for polynomial expressions but not division by variable.

Perimeter of the triangle is the sum of the sides of the triangle which is = 2x^2 -120 + x^2 -5x +8x -28

Perimeter = (3x^2 +3x -148)ft

when x = 10

Perimeter = 3(10)^2 +3(10) -148 = 182ft

In conclusion the expression  (3x^2 +3x -148)ft is the expression for the perimeter of the triangle and the value is 182ft

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Answer:

if you have the value of x then y =x +7

The probability that the animal's weight will be less than 151 pounds is 0.50.

The correct option is B.

Since the given probability distribution ranges from 148 to 152, and we need to find the probability that the animal's weight will be less than 151 pounds, we can add the probabilities corresponding to the weights less than 151.

From the distribution, we see that the probability of the animal's weight being less than 151 pounds is 0.2 + 0.3 = 0.5.

Therefore, the answer is O 0.50.

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Answer:

\(2 + 2 = 0\)

Step-by-step explanation:

It's easy you are

kid‍♂️‍♂️‍♂️

The value of the variable "x" is 11.

We have a triangle. The vertices of the triangle are K, L, and M. The side KM is extended from point M to point N. The measures of the angles MKL, LMN, and KLM are (3x + 19)°, (7x + 5)°, and (2x + 8)°, respectively. We need to find out the value of the variable "x".

The angles LMK and LMN form a linear pair. It means they are supplementary angles. The sum of the angles is 180°.

∠LMK + ∠LMN = 180°

∠LMK + (7x + 5)° = 180°

∠LMK = 180° - (7x + 5)°

In the triangle KLM, we will use the angle sum property of a triangle. The sum of all the angles in a triangle is equal to 180°.

∠K + ∠L + ∠M = 180°

(3x +19)° + (2x + 8)° + [180° - (7x + 5)°] = 180°

3x +19 + 2x + 8 + 180 - 7x - 5 = 180

-2x + 22 = 0

2x = 22

x = 11

Hence, the value of the variable "x" is 11.

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The median is the middle number in the data set when

the data set is written from least to greatest.

So let's write our data set from least to greatest.

4, 9, 15, 16, 18, 21, 25, 27, 30, 31, 33

Now, we identify the middle number.

4, 9, 15, 16, 18, 21, 25, 27, 30, 31, 33

Notice that 21 appears in the middle.

So the median of the data set is 21.

Answer:

Median: 21

Step-by-step explanation:

arrange all the numbers from least to greatest:

4, 9, 15, 16, 18, 21, 25, 27, 30, 31, 33

median = is the middle number in the data set/listed numbers.

Since there are eleven numbers in the set of data, we divide it equally, to find the median.

{4, 9, 15, 16, 18} 21 {25, 27, 30, 31, 33}

Answer:

4\(y^{\frac{3}{2} }\)

Step-by-step explanation:

using the rule of exponents/ radicals

\(\sqrt[n]{a^{m} }\) = \(a^{\frac{m}{n} }\)

then

4 \(\sqrt{y^{3} }\)

= 4\(y^{\frac{3}{2} }\)

Answer: 171

Step-by-step explanation:

Answer: 6/14

Step-by-step explanation: There are 6 rock songs and a total of 6+5+3= 14 songs. So, the probability is 6/14

Answer:

Step-by-step explanation:

525=275

x−13⋅(x+34y)−y+38=2x3−5y4+38

y=2x3−5y4+38

The the coefficient of variation for set a is 15.7% and the coefficient of variation for set b is 22.3%.

The formula for calculating the coefficient of variation is:

CV = (standard deviation / mean) x 100%

where standard deviation is a measure of the spread of the data around the mean. The CV expresses the standard deviation as a percentage of the mean.

To calculate the CV for set a, we first need to find the mean and standard deviation of the data set. The mean can be calculated by adding all the values and dividing by the number of values.

Mean = (3.97 + 3.47 + 3.99 + 4.30 + 3.16 + 3.07 + 4.24 + 2.94 + 3.56 + 3.43 + 3.06 + 3.34 + 4.35 + 3.57) / 14 = 3.65

The standard deviation can be calculated using a calculator or a spreadsheet software such as Microsoft Excel. For this set, the standard deviation is 0.574.

CV = (0.574 / 3.65) x 100% = 15.7%

To calculate the CV for set b, we need to first remove the dollar sign from each value and then find the mean and standard deviation.

Mean = ($24,800 + $30,000 + $22,300 + $20,400 + $19,000 + $32,200 + $23,000 + $23,000 + $24,000 + $27,200 + $34,900) / 11 = $25,727.27

The standard deviation can be calculated using a calculator or spreadsheet software. For this set, the standard deviation is $5,746.38.

CV = ($5,746.38 / $25,727.27) x 100% = 22.3%

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The x⁶y³ term in the expansion will be:  35 x⁶y³.

The x⁸y² term in the expansion will be: 21x⁸y².

The binomial expansion of (x + y)ⁿ is given by the binomial theorem, which states:

(x + y)ⁿ = C(n, 0) * xⁿ * y⁰ + C(n, 1) * xⁿ⁻¹ * y¹ + C(n, 2) * xⁿ⁻² * y² + ... + C(n, k) * xⁿ⁻ᵏ * yᵏ + ... + C(n, n) * x⁰ * yⁿ

where;

Given that the term 210x⁴y⁶ appears in the expansion, we can infer that it corresponds to C(n, k) * x⁴ * y⁶, where k is the number of times y appears in the term, and (n - k) is the number of times x appears in the term.

Comparing this with the given term, we can deduce the values of n, k, and x in the following way:

C(n, k) = 210

x⁴ = x⁴

y⁶ = y³ * y³

Comparing the exponents on x and y, we can set up the following equations:

n - k = 4 (1)

k = 3 (2)

Solving equation (2) for k, we get:

k = 3

Substituting this value of k into equation (1), we can solve for n:

n - 3 = 4

n = 7

So, the value of n is 7.

Now, we can use the binomial coefficient formula to calculate C(n, k):

C(n, k) = C(7, 3) = 7! / (3! * (7 - 3)!) = 35

Finally, substituting the values of n, k, and C(n, k) into the general term of the expansion, we can find the specific terms:

The x⁶y³ term in the expansion will be:

C(7, 3) * x⁶ * y³ = 35 * x⁶ * y³

The x⁸y² term in the expansion will be:

C(7, 2) * x⁸ * y² = 21 * x⁸ * y²

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Answer:

q' (5,6)

r' (7,3)

s' (5,0)

t' (1'3)

Step-by-step explanation:

your welcome