Deborah is going to the movies. Her ticket cost $11.50 and each ofthe snacks are $2.50 each. If she spends a total of $19, how manysnacks did she buy? (Write and solve an equation to represent thissituation.)

Answer:

50-6= 54

54÷4= 13.5

editing for clarity.

first you subtract the 6 from the 50 to find out what the "4 times a number" came to.

in this case, 50-6, which equals 54.

then, you divide the 54 by 4 to get 13.5.

so, the whole math problem would be

4 times 13.5 plus 6 equals 50.

Answer:

 (b)  30 Mm

Step-by-step explanation:

Dividing the given equation by 202500 puts the equation of the ellipse in standard form.

  x^2/900 +y^2/225 = 1

The values 900 and 225 are the squares of the semi-major axis and the semi-minor axis, respectively. The maximum distance of the moon from the center of its orbit is √900 Mm = 30 Mm.

Answer:

4

Step-by-step explanation:

its like you have 2 fishes and you get two more

Answer:

4

Step-by-step explanation:

When you have two question marks and add two more you have four

????

1234

For this problem, I will assume that a majority of votes is sufficient to win.

step 1

Adds the percentages

32.9%+25.9%+20.0%+6.6%=85.4%

Divide by 2

85.4%/2=42.7%

so

If Raphael Warnock has a percentage greater than 42.7%

then

win the seat

The original percentage of Raphael Warnock is 32.9%

Find out the difference

42.7%-32.9%=9.8%

Applying proportion

Find out how many voters represent 9.8%

we know that

324,118 ------> 6.6%

so

324,118/6.6=x/9.8

solve for x

x=481,266 voters

therefore

1. The possible amounts of time for which the chemistry club could rent the meeting room are 1 to 5 hours.

2. Solving the inequality for t is 39 + 6.80t ≤ 73, where the maximum time is 5 hours.

Inequality is a mathematical statement that two or more mathematical expressions are unequal.

Inequalities are depicted using the following symbols:

The total budget of the chemistry club for renting a meeting room = $73.60

The reservation fee charged by the college = $39

The additional fee (variable cost) per hour = $6.80

The number of hours the club can rent the meeting room = t

The inequality representing the situation is:

39 + 6.80t ≤ 73.

39 + 6.80t ≤ 73

6.8t ≤ 73 - 39

6.8t ≤ 34

t ≤ 5 (34/6.8)

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Answer:

Step-by-step explanation:

No explanation is needed because there is no question.

Answer:

you got it

Step-by-step explanation:

no explanation needed

Answer:

Step-by-step explanation:

f(x) = x^2 + 3x - x/2

f(x) = x^2 + 2.5x    

f(6) = 6^2 + 2.5*6

f(6) = 36 + 15

f(6) = 51

3. The factored polynomial is p(x) = (x - 1)(x - 5)

4. The factored polynomial is p(x) = (x + 3)²

A polynomial is a mathematical expression in which the power of the unknown is greater than or equal to 2.

3. To factorize the polynomial using the graph, we see that the polynomial cuts the x - axis at x = 1 and x = 5.

This implies that its factors are (x - 1) and (x - 5)

So, the factored polynomial is p(x) = (x - 1)(x - 5)

4. To factorize the polynomial using the graph, we see that the polynomial touches the x - axis at only one point x = -3. So,it has repeated roots

This implies that its factors are (x - (-3)) = (x + 3) twice

So, the factored polynomial is p(x) = (x + 3)²

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Answer:

-8x-5=77

Step-by-step explanation:

five less than -5

product of a number and -8. -8x

Answer:

Step-by-step explanation:

35 × 1,000,000 = 35,000,000 mm

35,000,000 mm

= 35,000,000 : 1,000,000

= 35 km

The real distance between the two points is 35 kilometers. The scale of a map is a ratio of the distance on the map to the actual distance on the ground. In this case, the scale is 1:1,000,000, which means that every 1 millimeter on the map corresponds to an actual distance of 1,000,000 millimeters.

So, if the distance between two points on the map is 35 millimeters, then the real distance between the two points is 35 * 1,000,000 = 35,000,000 millimeters.

To convert millimeters to kilometers, we can divide by 1,000. So the real distance between the two points is 35,000,000 / 1,000 = 35 kilometers.

Therefore, the answer is 35 km.

Here is an explanation of the steps involved in solving the problem:

Identify the known and unknown quantities. The known quantity is the scale of the map, which is 1:1,000,000. The unknown quantity is the real distance between the two points.

Set up a proportion. The proportion can be set up as follows:

Distance on map / Actual distance = 1 millimeter / 1,000,000 millimeters

Substitute known values. The distance on the map is 35 millimeters. So we have:

35 millimeters / Actual distance = 1 millimeter / 1,000,000 millimeters

Solve for the unknown quantity. To solve for the unknown quantity, we can cross-multiply. This gives us:

Actual distance = 35 millimeters * 1,000,000 millimeters / 1 millimeter

Actual distance = 35,000,000 millimeters

Convert millimeters to kilometers. To convert millimeters to kilometers, we can divide by 1,000. This gives us:

Actual distance = 35,000,000 / 1,000 = 35 kilometers

Therefore, the real distance between the two points is 35 kilometers.

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The ratio of girls to boys in the class is 3:7.

To calculate the ratio of girls to boys in the class, we need to determine the number of girls in the class.

Given that there are 50 students in total and 35 of them are boys, we can find the number of girls by subtracting the number of boys from the total number of students:

Number of girls = Total number of students - Number of boys

Number of girls = 50 - 35

Number of girls = 15

Now that we know there are 15 girls in the class and 35 boys, we can calculate the ratio of girls to boys.

Ratio of girls to boys = Number of girls / Number of boys

Ratio of girls to boys = 15 / 35

To simplify the ratio, we can divide both the numerator and denominator by their greatest common divisor, which in this case is 5:

Ratio of girls to boys = (15 ÷ 5) / (35 ÷ 5)

Ratio of girls to boys = 3 / 7

This means that for every 3 girls, there are 7 boys in the class. The ratio provides a relative comparison of the number of girls to the number of boys, helping to understand the gender distribution within the class.

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Answer:

I don't know I'm sorry I will tell you another answer asks me

Answer:

It would equal -3

Step-by-step explanation:

you are trying to find how to get a positive 21 so you would have to divide 21 by -7

21 ÷ -7 = -3

to make sure it's correct muiltply it

-7 × -3 = 21

So therefore n = -3

The only matrix that is certainly symmetric is a)\((a^2 - b^2).\)

We know that a matrix A is symmetric if it is equal to its transpose, that is \(A = A^T.\)

a) \((a^2 - b^2)\)

We can write the transpose of this matrix as

\((a^2 - b^2)^T = (a^2)^T - (b^2)^T = a^2 - b^2\), which is equal to the original matrix. Therefore, this matrix is symmetric.

b) (A+B)(A-B)

Expanding this expression, we get \((A+B)(A-B) = A^2 - AB + BA - B^2.\)

Taking the transpose of this, we get \((A^2)^T - (AB)^T + (BA)^T - (B^2)^T = A^2 - BA + AB - B^2.\)

Since AB and BA may not be equal, we cannot say for certain that this matrix is symmetric.

c) ABA

Taking the transpose of this matrix, we get\((ABA)^T = A^T B^T A^T\). Since \(A^T and B^T\) may not commute, we cannot say for certain that this matrix is symmetric.

d) ABAB

Taking the transpose of this matrix, we get \((ABAB)^T = B^T A^T B^T A^T\). Again, since \(A^T and B^T\) may not commute, we cannot say for certain that this matrix is symmetric.

Therefore, the only matrix that is certainly symmetric is a) \((a^2 - b^2).\)

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Answer:

B. There is sufficient sample evidence to support the claim that the true mean weight, in ounces, of all Colgate toothpaste tubes is not 6 oz.

Step-by-step explanation:

A two-tailed hypothesis test is performed.

The null and alternative hypothesis are:

\(H_0: \mu=6\\\\H_a:\mu\neq 6\)

The P-value calculated in this test is 0.0104.

As this P-value (0.0104) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the mean fill volume differs significantly from 6 oz.

The value of the given summation is:

\(\sum (29a_i - 13b_i) ]= -30\)

Here we know that the sums are:

\(\sum a_i = -10\\\\\sum b_i = -20\)

And we want to find the value of the sum:

\(\sum (29a_i - 13b_i)\)

First we can distribute the sum to get:

\(\sum 29a_i + \sum - 13b_i\)

And take the coefficients out of the sum:

\(29\sum a_i -13\sum b_i\)

Now replace the known values:

\(29\sum a_i -13\sum b_i = 29*-10 - 13*-20 = -290 + 260 = -30\)

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Answer:

7x -14 = jl

Step-by-step explanation:

Assuming a straight line

jm+ ml = jl

5x-8 + 2x-6 = jl

Combine like terms

7x -14 = jl

Answer: 280

Step-by-step explanation:

The products of each pair of numbers are:

1 x 33 = 33

4 x 30 = 120

8 x 26 = 208

14 x 20 = 280

b. To find the pair of numbers that will produce the largest possible product, we need to look for the pair with the closest product to 340 (the square of 17, which is the average of the two numbers).

The pair of numbers with the closest product to 340 is 14 and 20, whose product is 280. Therefore, the pair of numbers that will produce the largest possible product is 14 and 20, and the product is 280.

Explanation:

For any 45-45-90 triangle, if each leg is x units long, then the hypotenuse is x*sqrt(2) units long. Comparing that with 16*sqrt(2) must mean x = 16.

Answer:

A

Step-by-step explanation:

I remember it by:

acute: a cute little angle that is smaller than 90 degrees

Kira has $19, Boris has $75, and Deshuan has $25.

We will denote as follows:

From information, we can set up equations:

B = 3D (Boris has 3 times what Deshuan has)

D = K + 6 (Deshuan has $6 more than Kira)

K + B + D = 119 (The total amount of money they have is $119)

Substituting equation 2 into equation 1, we have:

B = 3(K + 6)

Substituting equations 1 and 2 into equation 3:

K + 3(K + 6) + (K + 6) = 119

K + 3K + 18 + K + 6 = 119

5K + 24 = 119

5K = 119 - 24

5K = 95

K = 95 / 5

K = 19

Using equation 2, we can find D:

D = K + 6

D = 19 + 6

D = 25

Using equation 1, we can find B:

B = 3D

B = 3 * 25

B = 75.

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Answer:

Step-by-step explanation:

1) find the total candies

7 + 8 + 5 + 9 = 29

2) a probability can be expressed with a fraction whose denominator is the total candies, while the numerator represents the candies that we want to find

- red = 7/29

- blue = 8/29

- yellow = 5/29

- green = 9/29

3) compound probability

(red + blue)/29 = 15/29

(yellow + green)/29 = 14/29

(blue + yellow + green)/29 = 22/29

Answer:

Hi

Please mark brainliest ❣️

Thanks

Step-by-step explanation:

The answer is NO

Reason

x= 2 y= 1

Now input in the first inequality

y≤ -x + 4

1 ≤ -2 +4

1≤ 2 i.e 1 is less than two

Next inequality

y≤ x +1

1 ≤ 2 + 1

1≤ 3 i.e 1 is less than 3

But 1 is not equal to 3 and also not equal to 2

Hence our answer is NO

Answer:

x=12

Step-by-step explanation:

3× + 4 = 52-×

add x to each side

4x+4=52

subtract 4 from each side

4x=48

divide each side by 4

x=12

Answer:

no its an irrational number

Step-by-step explanation:

hope it helps im not 100%

Answer:

r^2 + 6rs  - 4rd - 2d^2 + 3s^2

Step-by-step explanation:

3(r+s)^2 - 2(r+d)^2

PEMDAS

parenthesis, exponents, multiplication, division, addition, subtraction

in that order

3( r^2 + 2rs + s^2 ) - 2(r^2+ 2rd + d^2)

3r^2 + 6rs + 3s^2 - 2r^2 - 4rd - 2d^2

r^2 + 6rs  - 4rd - 2d^2 + 3s^2

We can express the number 98 in exponential form as 10 raised to the power of 2. This means that by multiplying the base, which is 10, by itself twice, we obtain the value of 98.

To express 98 in exponential form, we need to determine the base and exponent that can represent the number 98.

Exponential form represents a number as a base raised to an exponent. Let's find the base and exponent for 98:

We can express 98 as 10 raised to a certain power since the base 10 is commonly used in exponential notation.

To find the exponent, we need to determine how many times we can divide 98 by 10 until we reach 1. This will give us the power to which 10 needs to be raised.

98 ÷ 10 = 9.8

Since 9.8 is still greater than 1, we need to continue dividing by 10.

9.8 ÷ 10 = 0.98

Now, we have reached a value less than 1, so we stop dividing.

From these calculations, we can see that 98 can be expressed as 10 raised to the power of 1 plus the number of times we divided by 10:

98 =\(10^1\) + 2

Therefore, we can write 98 in exponential form as:

98 = \(10^3\)

In summary, 98 can be expressed in exponential form as 10^2. The base is 10, and the exponent is 2, indicating that we multiply 10 by itself two times to obtain 98.

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The z-score for a 97.5% confidence level is approximately 1.96. This means that a value that falls 1.96 standard deviations above the mean will have a cumulative probability of 0.975 or a 97.5% confidence level.

The z-score for a given confidence level represents the number of standard deviations away from the mean that corresponds to that level of confidence. To find the z-score for a 97.5% confidence level, we need to determine the area under the normal distribution curve that corresponds to a cumulative probability of 0.975.

The standard normal distribution has a mean of 0 and a standard deviation of 1. Using a standard normal distribution table or a statistical calculator, we can find that the area to the left of the z-score is 0.975.

Since the normal distribution is symmetric, the area to the right of the z-score is also 0.025. To find the z-score, we need to determine the value that corresponds to an area of 0.025. From the standard normal distribution table or calculator, we find that the z-score for a cumulative probability of 0.025 is approximately 1.96.

Therefore, the z-score for a 97.5% confidence level is approximately 1.96. This means that a value that falls 1.96 standard deviations above the mean will have a cumulative probability of 0.975 or a 97.5% confidence level.

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