Which equation shows a proportional relationship between x and y a) y=2×+1 b) y+4×=8 c) y=5×

Answer:

42years

Step-by-step explanation:

2.5million=5million*(1-0.07)^(t)

2.5/5=0.93^(t)

0.5=0.93^t

(log0.05)/(log0.93)=t

t~42years

Answer:

iy will take 42 years

Step-by-step explanation:

hoped that helped

1. From the picture, A'B'C'D' is a reflection of ABCD over the y-axis

2. From the picture, A"B"C"D" is a rotation of A'B'C'D'

3. Since A'B'C'D' and A''B''C''D'' are rigid transformations of ABCD, then ∠B' and ∠B'' are congruent with ∠B, that is, the measures of ∠B' and ∠B'' are 89°

4. Since A''B''C''D'' is a rigid transformation of ABCD, then the perimeter of A''B''C''D'' is the same as the perimeter of ABCD, which is 6 + 6 + 8 + 6.3 = 26.3

Answer:

AD = 5 units

Step-by-step explanation:

Given:

Perimeter = 18 units

BC = 4 units

CD = 3 units

Required:

Length of segment AD

Solution:

Perimeter = AB + BC + CD + AD

We can easily find AB,

AB = 6 units (distance from A to B)

Plug in the values

18 = 6 + 4 + 3 + AD

18 = 13 + AD

Subtract 13 from each side

18 - 13 = 13 + AD - 13

5 = AD

AD = 5 units

The car takes 9 seconds to reach a speed of 55 m/s while merging onto the freeway, given its initial speed of 10 m/s and constant acceleration of 5 m/s².

To calculate the time it takes for the car to reach a speed of 55 m/s, we can use the equation of motion: v = u + at. Here, v represents the final velocity, u is the initial velocity, a is the acceleration, and t denotes the time taken.

Initial velocity, u = 10 m/s

Acceleration, a = 5 m/s²

Final velocity, v = 55 m/s

We need to find the time, t. Rearranging the equation, we have:

v = u + at

Substituting the given values:

55 m/s = 10 m/s + 5 m/s² * t

Now, let's isolate the time, t:

55 m/s - 10 m/s = 5 m/s² * t

45 m/s = 5 m/s² * t

Dividing both sides by 5 m/s²:

t = 45 m/s / 5 m/s²

Simplifying:

t = 9 seconds

Therefore, it takes 9 seconds for the car to reach a speed of 55 m/s while merging onto the freeway.

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The main answer is that the infinite number of types of matter arises from the unique combinations of elements and their arrangements in terms of composition and geometry.

While the number of elements is limited, their combinations and arrangements allow for an infinite number of types of matter. Elements can combine in different ratios and configurations, forming various compounds and structures with distinct properties.

Additionally, the arrangement of atoms within a molecule or the spatial arrangement of molecules within a material can create different types of matter. These factors, along with the possibility of isotopes and different states of matter, contribute to the vast diversity and infinite types of matter despite the limited number of elements.

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Answer:

= -2

Step-by-step explanation:

-2 -(-7)

= 5

Answer:

He cannot save $5 when he is buying something instead of making it himself.

Step-by-step explanation:

He makes $10 from lawn mowing and spends $5 on Taco Bell. He has $5 left.

If he made is lunch, He would have had $10 dollars.

Andrew's argument is flawed because he is not considering all of the costs and benefits associated with his decision to go to Taco Bell instead of preparing his own meal.

An argument is a collection of claims, the premises of which are provided in support of another statement, the conclusion.

There are a few problems with Andrew's argument.

First, he is assuming that the only cost of preparing his own meal is the price of the ingredients. However, there are also opportunity costs associated with preparing his own meal, such as the time he spends making it and the opportunity to do something else during that time (such as study for his exam).

Second, Andrew is assuming that he would have spent the same amount of money on ingredients as he did on his meal at Taco Bell. However, it is possible that the ingredients he would have used to make his own meal would have cost less than $5, in which case he would not have saved as much money as he thinks.

Finally, Andrew is assuming that he would have spent the same amount of time preparing his own meal as he did going to Taco Bell. However, it is possible that it would have taken him longer to prepare his own meal, in which case the opportunity cost of his time would have been even higher.

Overall, Andrew's argument is flawed because he does not evaluate all of the expenses and advantages of his decision to eat at Taco Bell instead of cooking his own dinner.

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Answer: 126 degrees

there are 360 degrees in a circle.  

The answer is:

P(not heart) = 77.5% (D)

What is the probability?

Probability is a mathematical concept that describes the likelihood of an event occurring. It is a value between 0 and 1, where 0 means an event is impossible to occur and 1 means an event is certain to occur.

To find the experimental probability of not selecting a heart, we need to determine the number of trials in which Lisa did not select a heart and divide that number by the total number of trials (40). In this case, the number of trials in which a heart was not selected is 40 - 9 = 31.

Hence, the experimental probability of not selecting a heart can be calculated as:

P(not heart) = 31/40 = 0.775

The answer is:

P(not heart) = 77.5% (D)

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Answer:

Step-by-step explanation:

Volume of the prism is the product of its base area and height

Find base area:

Area of the trapezoid:

Substitute given values and solve for h:

Find area of base

Now

Height of trapezoid base be x

Answer:

something to do with sets

Step-by-step explanation:

I think {odd numbers from 1 to 15 inclusive, there is something more to it but this is just a idea

Answer:

249.6

Step-by-step explanation:

Answer:

249.6

Step-by-step explanation:

The word of in math can be interpreted as a multiplication symbol. This means 26% × 960

26% is also 0.26

so 0.26 × 960 = 249.6

Answer:

14 oz of flour.     2 oz yeast.

Step-by-step explanation:

If you're making 40 servings of bread and using 0.35 oz of yeast, you need:

0.35 oz yeast / 1 yeast : 200 flour = 0.35 oz yeast / 1 : 200 flour = 0.00175 oz yeast/flour

So, you need 0.00175 oz yeast/flour * 40 servings * 200 flour/serving = 14 oz of flour.

If you're making 90 servings of bread and using 360 oz of flour, you need:

1 yeast : 180 flour = 360 oz flour / 90 servings / 180 flour/serving = 2 oz yeast.

The longer trail is outlook trail.

Mixed fractions are type of fractions which consist of a whole number part and a fractional part.

Mixed fractions are of the form a b/c where a is the whole number part and b/c is the fractional part.

The lengths of these trails are given in the mixed number form.

First, converting it into improper fraction,

Length of lake trail = 4 3/5 mile = (4 × 5 + 3) / 5 = 23/5 miles

Length of outlook trail = 5 5/6 mile = (5 × 6 + 5) / 6 = 35/6 miles

Length of pinewood trail = 1 3/10 mile = (1 × 10 + 3) / 10 = 13/10 miles

35/6 > 13/10

Outlook trail is longer.

Hence the outlook trail is the longer trail.

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Answer:

A: x=6

Step-by-step explanation:

If x is equal to 6, then -3 multiplied by 6 would be equal to 18.

Then you take that 18 and subtract it from 36.

36-18=18

Answer: 0

Step-by-step explanation:

Answer:

Step-by-step explanation:

By using the rule of 3 we wills ee that the percentage of students who play the trumpet is 20%

We know that there are 150 students in the marching band, that will be our 100% in this case, and we know that 30 of them play the trumpet.

These 30 students represent a percentage X that we want to find, so we can write a little system of equations and use the rule of 3.

30  = X

150 = 100%

Taking the quotient between the two equations we get:

(30/150) = X/100%

Solving for X we get:

(30/150)*100% = X = 20%

So we can say that 20% of the students play the trumpet.

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Answer:

according to the figure the width should have the same dimensions e.g if one is 94 the other should be 94 too

The probability that a randomly selected student in the course both did not do homework regularly and received an A or B grade is approximately 0.0564 or 5.64%.

To find the probability that a randomly selected student in the course both did not do homework regularly and received an A or B grade, we can use conditional probability.

Let's denote the events as follows:

A = Student does homework regularly

B = Student receives an A or B grade

We are given the following probabilities:

P(A) = 0.53 (Probability that a student does homework regularly)

P(B|A) = 0.71 (Probability that a student receives an A or B grade given that they do homework regularly)

P(B|A') = 0.12 (Probability that a student receives an A or B grade given that they do not do homework regularly)

We want to find P(A' ∩ B), which represents the probability that a student does not do homework regularly (A') and receives an A or B grade (B).

Using the formula for conditional probability, we have:

P(A' ∩ B) = P(B|A') * P(A')

To find P(A'), we can use the complement rule:

P(A') = 1 - P(A)

Substituting the given values, we have:

P(A') = 1 - 0.53 = 0.47

P(B|A') = 0.12

Now, we can calculate P(A' ∩ B):

P(A' ∩ B) = P(B|A') * P(A') = 0.12 * 0.47 = 0.0564

Therefore, the probability that a randomly selected student in the course both did not do homework regularly and received an A or B grade is approximately 0.0564 or 5.64%.

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Answer:

No it does not apply to this problem because the submarine starts at a depth of 100 feet below sea level.

Answer:

x=5

Step-by-step explanation:

x^2+25-10x = x^2-25

-x^2               -x^2

25-10x = -25

-25        -25

-10x = -50

x=5

lets check

(5-5)^2 = 5^2-25

0^2 = 25-25

0 = 0

Answer:

x = 5

Step-by-step explanation:

(x - 5)^2 = (x - 5) (x - 5) =

x^2 -10x + 25 = x^2 - 25

x^2 - x^2 - 10x + 25 = - 25 (x^2 - x^2 = 0)

- 10x + 25 = - 25

- 10x = - 25 - 25

x = - 50/- 10

x = 5

The firm's output when marginal revenue is equal to zero is 1 million. Hence, the answer is option a. 1.

To find the firm's output when marginal revenue (MR) is equal to zero, we need to first understand the relationship between the demand curve and marginal revenue.

The marginal revenue (MR) is the change in total revenue resulting from producing and selling one additional unit of output. In this case, the total revenue (TR) is the product of quantity (Q) and price (P), so we have TR = QP.

To find the marginal revenue, we can take the derivative of the total revenue function with respect to quantity:

MR = d(TR)/dQ

Using the given demand curve Q = 2 - 0.01P, we can express price (P) in terms of quantity (Q) as P = 200 - 100Q (by rearranging the equation).

Substituting this price expression into the total revenue function, we have:

TR = QP = Q(200 - 100Q) = 200Q - 100Q^2

Now, we can find the marginal revenue by taking the derivative of the total revenue function with respect to quantity (Q):

MR = d(TR)/dQ = 200 - 200Q

To find the output level when MR is equal to zero, we set MR = 0 and solve for Q:

0 = 200 - 200Q

200Q = 200

Q = 200/200

Q = 1

Therefore, the firm's output when marginal revenue is equal to zero is 1 million. Hence, the answer is option a. 1.

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3 presents.

Reason:

12 divided by 2 is 6, and 18 divided by 3 is also 6, meaning that he will be able to wrap 3 presents.

Answer:

Answer is 3 presents

Step-by-step explanation:

12 centimeter tape used for 2 presents

1 centimeter tape used for \(\frac{2}{12}\) presents

18 centimeter tape used for 18 × \(\frac{2}{12}\) presents

                                             = 3 presents        

The book  'Terrible Weather' was written by WAYNE DROPS

An equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Solving the equations,

1) 5x-7 = 4x+3

x = 10 (N)

2) 6+2x = 7x-9

5x = 15

x = 3 (O)

3) 8x+1 = -8-x

-9x = 9

x = -1 (A)

4) -5+12x = 18x+7

6x = -12

x = -2 (S)

5) -4x+3 = 5x-13-x

8x = 16

x = 2 (R)

6) -10-11x+24 = 3x

14x = 14

x = 1 (E)

7) 8+3x = x+11+2x

3x-3x = 11-8

3 = 0

No solution (Y)

8) 5+17x+9 = 2x+21x+14

6x = 0

x = 0 (D)

9) 6x+8-13x+10 = 4-6x-11+4x

-7x+18 = -7-2x

5x = 25

x = 5 (W)

10) -14+5-x-3 = x+6+x+3x

-18 = 6x

x = -3 (P)

Now, the answer is coded as 93716 852104

Decoding with the help of the solutions of the given equations

WAYNE DROPS

Hence, the answer is WAYNE DROPS

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Answer: 85.1

Step-by-step explanation:

583 times the length of jeff's ride was larry's bike ride

Word problem in maths is a maths question written as one sentence or more that requires children to apply their maths knowledge to a ‘real-life’ scenario. a word problem is a mathematical exercise (such as in a textbook, worksheet, or exam) where significant background information on the problem is presented in ordinary language rather than in mathematical notation. As most word problems involve a narrative of some sort, they are sometimes referred to as story problems and may vary in the amount of technical language used.Word problems are usually made up of a few sentences describing a scenario that needs to be solved through maths. These scenarios are usually ‘real-life- ones, situations that people might find themselves in every day. For example, it could be the division of pizza between party members or working out how long a train might take from one place to another.

This means that children must be familiar with the vocabulary associated with the mathematical symbols they are used to, in order to make sense of the word problem.

Given,jeff jogged 4 miles today, and larry biked 2 1/3 miles.

Let x times the length of jeff's ride was larry's bike ride.

4x= 7/3

x=.583 times

So, .583 times the length of jeff's ride was larry's bike ride.

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option B

tell me if u need step by step :)