Question:In the equation P = 2x + 7, P represents the price, in dollars, of tickets to a concert x hours after they go on sale. When will the price exceed $20.00?

1. Describe in words how the equation can be used to solve the problem.

2. Draw a graphical representation of the price equation, and illustrate how a solution could be found that way.

Answers

Answer 1
Answer:

Let

P-------> the price  in dollars of tickets

x------> the number of hours

we know that

P=2x+7 -------> equation A

When will the price exceed $20.00?

Part 1) Describe in words how the equation can be used to solve the problem

Substitute the value of P equal to \$20.00 in the equation A and find the value of x

so

For P=\$20.00

substitute in equation A

20=2x+7

2x=20-7

2x=13

x=6.5\ hours

therefore

the answer Part 1) is

the price exceed  \$20.00 when the time exceed 6.5\ hours

Part 2) Draw a graphical representation of the price equation, and illustrate how a solution could be found that way.

using a graphing tool

Draw the equation of the lines

P=2x+7

P=20

the solution is the intersection both graphs

see the attached figure

the solution is the point (6.5, 20)

that means

for x=6.5\ hours  

P=\$20.00

Answer 2
Answer: 1. This equation can be used to help solve the problem by plugging in numbers for x. Whatever answer for x gives a price that is more than $20.00 is the answer for the number of tickets that have to be sold in order to exeed $20.00.

2. This equation has the same format as an equation in slope intercept form. This makes it easy to graph.The y intercept will be 7 and the slope is 2. Using this information, it is easy to graph the equation and find a solution. The graph should look like the image I attached to this answer. 

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Factorize 16x^2 + 16xy + 4y^2. A) (4x + 2y)^2 B) (4x - 2y)^2 C) 4(x + y)^2 D) 4(x - y)^2

1. Find the products. Show your thinking. An example of how to show your thinking is provided.a. 1,400 × 20
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c. 120 × 300


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a. 582 x 23 ≈ __600________ x ___20_______ = 12,000


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c. 6,397 x 349 ≈ __________ x __________ = 1,800,000



3. Round the factors and estimate the products. Round to the highest place value.


a. 656 × 106 ≈ __________ x __________ = __________


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Answers

So number 1 is B number 2 is A number 3 is B

1.666667 as a fraction

Answers

= 1.666667

= 1.666667 / 1

Numerator  = 1.666667 × 10 × 10 × 10 × 10 × 10 × 10 = 1666667

Denominator= 1 × 10 × 10 × 10 × 10 × 10 × 10 = 1000000


⇅⇅⇅⇅⇅⇅⇅⇵⇵⇵⇵⇵⇵⇵⇵⇵⇵


= 1666667/1000000

= 1  666667/1000000

Convert to a fraction by placing the decimal number over a power of 10.
1666667/1000000

draw an array to show how to arrange 20 chairs into 5 equal rows. Explain what each part of the array represents.

Answers

Since there are 20 chairs and should be arrange into 5 equal rows. So the number of chairs in each row is equal to 20 / 5 which equal to 4. so let x represent a chair in the array. so the drawing should be like:
x x x x
x x x x
x x x x
x x x x
x x x x 

To prepare for a triathlon, Mary swam 6.2 miles, jogged 10.5 miles, and biked 18.1 miles. In total, how many miles did she travel during exercise?

Answers

It's 34.8 miles there you go

Eighty percent of the tourists in a group took a bus and the rest took a taxi. The bus fare per person is 40% less than the taxi fare per person. All together they paid $68 for the tour transportation, and the bus fare per person is $3. How many tourists are in the group?

Answers

Answer:

Bus = 16 Tourists and Taxi = 4 Tourists

Total = 20 Tourists

Step-by-step explanation:

According to the Question,

  • Given, 80% of the tourists in a group took a bus and 20% took a taxi. Thus the Ratio of Tourists Travel by Bus toTaxi is 4x:1x.
  • The bus fare per person is 40% less than the taxi fare per person. And Also Given that the bus fare per person is $3 Thus, The Taxi fare per person would be $5.

All together they paid $68 for the tour transportation.

  • 4x × 3 + x × 5 = 68
  • 12x × 5x = 68
  • 17x =68
  • x=4

And, the Ratio of Tourists Travels by Bus toTaxi is 4x:1x . So,the Tourists Travel by Bus to Taxi is 16 and 4 Respectively . Total = 20 Tourists are in the Group.

Your nephew is standing on his deck, which is 4 feet off the ground. He tosses his toy up into the air at an initial velocity of 7 feet per second. The equation h = -2t^(2) + 7t + 4 models the toy's height h in feet from the ground at t seconds after he threw it. a) How high is the toy after 0-4 seconds?

Answers

Step-by-step explanation:

The height attained by the toy as a function of time t is given by :

h = -2t^2 + 7t + 4

h is in feet and t is in seconds

Height of the toy at t = 0

h = -29(0)^2 + 7(0) + 4=4\ ft      

Height of the toy at t = 4 seconds is :

h=-2(4)^2 + 7(4)+ 4=0

So, between 0 to 4 seconds, height of the toy is 4 feets.

Final answer:

The toy's height after 0-4 seconds can be found by substituting different values of t into the given equation.

Explanation:

The equation given to model the toy's height is h = -2t^2 + 7t + 4, where h is the height in feet and t is the time in seconds. To find the height of the toy after 0-4 seconds, we substitute different values of t into the equation.

For t = 0, h = -2(0)^2 + 7(0) + 4 = 4 feet.

For t = 1, h = -2(1)^2 + 7(1) + 4 = 9 feet.

For t = 2, h = -2(2)^2 + 7(2) + 4 = 12 feet.

For t = 3, h = -2(3)^2 + 7(3) + 4 = 11 feet.

For t = 4, h = -2(4)^2 + 7(4) + 4 = 4 feet.

Learn more about Projectile motion here:

brainly.com/question/29545516

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