1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
OLEGan [10]
2 years ago
13

If there are 21 students in class today how much would it cost for the class and your teacher to ride the sandia aerial tram? ra

tes $25 adults $20 seniors 62+ & teens 13-20 yrs $15 youth 5-12 yrs
Please help due soon :(

Mathematics
1 answer:
Stels [109]2 years ago
7 0

Answer:

a. f(x) = 21 (20) +1 (25) = 445

b. The scenario is a function because each student just have to pay once.

You might be interested in
Write each sum as a product of two factors for 6•7+3•7
lapo4ka [179]
65 is the product of this
6 0
3 years ago
What is the solution to this system of equations?
Eduardwww [97]

Answer:

x = -2, y = 3

Step-by-step explanation:

Given equations are,

4x + 5y = 7 ---------(1)

3x - 2y = -12 ----------(2)

Multiply equation (1) by 3

12x + 15y = 21 ------(3)

Multiply equation (2) by (-4)

-12x + 8y = 48 --------(4)

Now add equations (3) and (4),

(12x + 15y) + (-12x + 8y) = 21 + 48

(12x - 12x) + (15y + 8y) = 69

23y = 69

y = 3

From equation (2),

3x - 2(3) = -12

3x - 6 = -12

3x = 6 - 12

x = -2

Therefore, x = -2 and y = 3 will be the answer.

4 0
3 years ago
Read 2 more answers
Please help me!!!!!!!!!
myrzilka [38]

Answer:

A vertical shrink and reflects over the x axis

3 0
2 years ago
Read 2 more answers
(x+y)×(x+y) tell me the answer​
lys-0071 [83]

The answer is x2 + 2xy + y2.

4 0
3 years ago
Read 2 more answers
Slices of pizza for a certain brand of pizza have a mass that is approximately normally distributed with a mean of 67.7 grams an
Alexxx [7]

Answer:

<u>a. s.e. = 0.338</u>

<u>b. The  probability of finding a random slice of pizza with a mass of less than 67.2 grams is 0.5871 or 58.71%</u>

<u>c. The probability of finding a 20 random slices of pizza with a mean mass of less than 67.2 grams is 0.0694 or 6.94%</u>

d. <u>The sample mean of 62.75 would represent the 15th percentile</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question properly:

μ of the mass of slices of pizza for a certain brand = 67.7 grams

σ of the mass of slices of pizza for a certain brand = 2.28 grams

2. For samples of size 20 pizza slices, what is the standard deviation for the sampling distribution of the sample mean?

Let's recall that the standard deviation of the sampling distribution of the mean is called the standard error of the mean and its formula is:

μσs.e.= √σ/n, where n is the sample size.

s.e. = √2.28/20

<u>s.e. = 0.338</u>

3. What is the probability of finding a random slice of pizza with a mass of less than 67.2 grams?

Let's find the z-score for X = 67.2, this way:

z-score = (X - μ)/σ

z-score = (67.2 - 67.7)/2.28

z-score = 0.5/2.28

z-score = 0.22 (rounding to the next hundredth)

Now, using the z-table, let's find p, the probability:

p (z = 0.22) = 0.5871

<u>The  probability of finding a random slice of pizza with a mass of less than 67.2 grams is 58.71%</u>

4.  What is the probability of finding a 20 random slices of pizza with a mean mass of less than 67.2 grams?

Let's use the central limit theorem to find the z-score, this way:

z-score = X - μ/s.e

z-score = 67.2 - 67.7/0.338

z-score = -0.5/0.338

z-score = - 1.48

Now, using the z-table, let's find p, the probability:

<u>p (z = -1.48) = 0.0694</u>

5. What sample mean (for a sample of size 20) would represent the bottom 15% (the 15th percentile)?

For p = 0.150, let's find the z-score:

z-score = - 2.17

z-score = X - μ/s.e

- 2.17 = (X - 67.7)/2.28

- 4.95 = X - 67.7

X = 67.7 - 4.95

X = 62.75 (rounding to the next hundredth)

<u>The sample mean of 62.75 would represent the 15th percentile</u>

7 0
3 years ago
Other questions:
  • A country has a Gross Domestic Product (GDP) of $225. If the GDP deflator is 3, what would be the real GDP of the country? The r
    8·2 answers
  • The value of a car is inversely proportional to its age. if a car is worth ​$49004900 when it is 55 years​ old, how old will it
    15·1 answer
  • Please help!posted picture of question
    5·2 answers
  • Is the number 4 prime or composite.
    6·2 answers
  • PLEASE HELP ME NOW!!
    7·2 answers
  • The answer and how did they get the answer lease help?
    5·1 answer
  • I need the help as possible please somebody help me I need help I swear please somebody help me help me help me please someone h
    15·1 answer
  • Convert the following number to percent 5/14 exact ,no decimals. Use a mixed number if needed.
    6·1 answer
  • Arrange the pairs of points in increasing order of slopes of the lines joining them
    14·1 answer
  • The function y=x²-4x+8 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!