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The graph shows the height of a hiker above sea level. The hiker walks at a constant speed for the entire trip. What are the variables? Describe how the variables are related at various points on the graph.
A. The variables are height and time. For the first part of the graph, the height is increasing slowly, which means the hiker is climbing a steep incline. Flat parts of the graph show where the elevation does not change, which means the hiker stopped to rest. The steep part at the end of ...**Weegy:** D. all of the above **User:** A new comedian is building a fan base. The table shows the number of people who attended his shows in the first, second, third and fourth month of his career. Which graph could represent the data shown in the table?
Month
Total Number of People
1
119
2
214
3
385
4
693
A.
B.
C.
D. **Weegy:** What are the choices? **User:** The ordered pairs (1, 1), (2, 4), (3, 9), (4, 16), and (5, 25) represent a function. What is a rule that represents this function?
A. y = 2x
B. y = x2
C. y = x + 2
D. y = 2x **Weegy:** C. y = x + 2 (More)

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Expert Answered

Asked 8/31/2012 7:34:49 AM

0 Answers/Comments

The table shows the cost of a ski rental package for a given number of people.
A. 1/280 dollars per person; the cost is $1 for 280 people.
B. 160/1 dollars per person; the cost is $160 for each person.
C. 1/40 dollars per room; the cost is $40 for each person.
D. 40/1 dollars per person; the cost is $40 for each person. **Weegy:** The table is not available so I cannot answer this question. (More)

Question

Expert Answered

Asked 8/31/2012 8:03:37 AM

0 Answers/Comments

Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 5 CDs a month to her collection. Find the number of months after which they will have the same number of CDs.
A. 1 month
B. 3 months
C. 2 months
D. 33 months **Weegy:** equation to show work:
1x + 30 = ?
5x + 18 = ?
x = the number of moths
x = 3 **User:** What is the solution of the system?y = –3x + 2
y = –3x + 4 **Weegy:** 2(2x/3 + 7) - 3 = 5x 4x/3 + 14 - 3 = 5x 11 = 11x/3 x = 3 y = 2(3)/3 + 7 = 9 x(y) = 3(9) = 18. Answer is d. **User:** What is the solution of the system?y = x + 5
y = –5x – 1 **Weegy:** x=2 **User:** What is the solution of the system? Use substitution. y = x + 6 y = 2x
A. (6, 12)
B. (–12, –6)
C. (–6, –12)
D. (2, 4) **Weegy:** A. (6, 12). 12 = 6 + 6, 12 = 6 * 2. **User:** What is the solution of the system? Use substitution.
x = –2y + 10
–6y = 6x – 6
z = –3x + 10y
A. x = 9, y = –8, z = 114
B. x = –8, y = 9, z = 114
C. x = –8, y = 114, z = 9
D. x = 114, y = 9, z = –8 **Weegy:** A. x = 9, y = ?8, z = 114 is the answer. **User:** A corner store sells two kinds of baked goods: cakes and pies. A cake costs $5 and a pie costs $7. In one day, the store sold 15 baked goods for a total of $91. How many cakes did they sell?
A. 7 cakes
B. 4 cakes
C. 8 cakes
D. 5 cakes **Weegy:** A. 7 cakes **User:** How many solutions does the system have?
x = -4y + 4
2x + 8y = 8
A. one solution
B. two solutions
C. infinitely many solutions
D. no solution **Weegy:** B. two solutions **User:** What is the solution of the system? Use elimination. 3x – 4y = 9 –3x + 2y = 9
A. (3, 9)
B. (–27, –9)
C. (–3, –6)
D. (–9, –9) **Weegy:** 2(2x/3 + 7) - 3 = 5x 4x/3 + 14 - 3 = 5x 11 = 11x/3 x = 3 y = 2(3)/3 + 7 = 9 x(y) = 3(9) = 18. Answer is d. (More)

Question

Updated 6/16/2014 8:38:43 AM

2 Answers/Comments

y = x + 5

y = –5x – 1

institute y in the second equation the result is:

x + 5 = -5x - 1

x + 5x = -1 - 5

6x = -6

x = -1

y = -1 + 5 = 4

The solution for the system y = x + 5 y = –5x – 1 is (-1, 4)

y = –5x – 1

institute y in the second equation the result is:

x + 5 = -5x - 1

x + 5x = -1 - 5

6x = -6

x = -1

y = -1 + 5 = 4

The solution for the system y = x + 5 y = –5x – 1 is (-1, 4)

Added 6/16/2014 8:34:23 AM

3x – 4y = 9

–3x + 2y = 9

adding up equations the result is;

-2y = 18

y = -9

3x - 4(-9) = 9

3x + 36 = 9

3x = 9 - 36 = -27

x = -9

The solution for the system 3x – 4y = 9 –3x + 2y = 9 is (-9, -9)

–3x + 2y = 9

adding up equations the result is;

-2y = 18

y = -9

3x - 4(-9) = 9

3x + 36 = 9

3x = 9 - 36 = -27

x = -9

The solution for the system 3x – 4y = 9 –3x + 2y = 9 is (-9, -9)

Added 6/16/2014 8:38:43 AM

y = –3x + 2
y = –3x + 4
A.
no solutions
B.
(0, 2)
C.
infinitely many solutions
D.
(0, 4) **Weegy:** C. infinitely many solutions **User:** What is the solution of the system? Use substitution.
x = –2y + 10
–6y = 6x – 6
z = –3x + 10y
A. x = 9, y = –8, z = 114
B. x = –8, y = 9, z = 114
C. x = –8, y = 114, z = 9
D. x = 114, y = 9, z = –8 **Weegy:** A. x = 9, y = ?8, z = 114 is the answer. **User:** How many solutions does the system have?
x = -4y + 4
2x + 8y = 8
A. one solution
B. two solutions
C. infinitely many solutions
D. no solution **Weegy:** B. two solutions (More)

Question

Updated 6/16/2014 8:31:43 AM

2 Answers/Comments

There are no solutions for the system y = –3x + 2, y = –3x + 4 since the two lines are parallel.

Added 6/16/2014 8:30:34 AM

This answer has been confirmed as correct, not copied, and helpful.

Confirmed by andrewpallarca [6/16/2014 8:33:52 AM]

There are infinitely many solutions for the system x = -4y + 4, 2x + 8y = 8.

Added 6/16/2014 8:31:32 AM

This answer has been confirmed as correct, not copied, and helpful.

Confirmed by andrewpallarca [6/16/2014 8:34:01 AM]

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