minie66
17.02.2020 •
Mathematics
Harry reads equal numbers of pages of a book every week. The graph shows the number of pages of the book left to read, y, after x weeks: A graph titled Harry’s Book Reading shows Number of Weeks on the x-axis and Number of Pages Left on the y-axis. The scale on the x-axis shows numbers from 0 to 6 at increments of 1, and the scale on the y-axis shows numbers from 0 to 385 at increments of 55. A straight line joins the ordered pairs 0, 275 and 1, 220 and 2, 165 and 3, 110 and 4, 55 and 5, 0. Which equation best models the relationship between x and y? y = −5x + 55 y = −55x + 385 y = −5x + 275 y = −55x + 275
Solved
Show answers
More tips
- F Food and Cooking Discover How to Properly Prepare Dough for Rasstegai...
- P Philosophy Unidentified Flying Object - What is the Nature of this Phenomenon?...
- F Family and Home Protect Your Home or Apartment from Pesky Ants...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Mathematics
- M Mathematics If 3d – (9 – 2d) = 51, find the value of 3d....
- M Mathematics X 0 1 2 3 4 y ०० 12 16 20 24...
- M Mathematics Two similar figures have a scale factor of 3/5. One side of the larger figure is 20 inches. how long is the corresponding side in the smaller figure?...
- M Mathematics One of every four doctors recommended Tylenol. If there are 2250 doctors, approximately how many recommended the medicine ? A. 225 B.560 C.850 D.10,000...
- M Mathematics Someone pls help me asap!! :((...
- M Mathematics Which set of ordely pairs represents y as a function of x...
- M Mathematics 13. Greg is going into business selling homemade blankets. The supplies for each blanket cost him $3.00, and he wants to earn at least $17.00 for each blanket to compensate...
- M Mathematics I need answers to Pearson Common Core geometry page 38 lesson 1-5 #7-10 #16-23 #26 #33-36...
- M Mathematics Simplify the following 7x+4x-2x...
- M Mathematics You might need: Calculator ZB Round your answer to the nearest hundredth. С 5 2 B Anyone know?...
Ответ:
Explanation:
The given points are:
(0, 275)(1, 220)(2, 165)(3, 110)(4,55)(5, 0)Since a straight line joins all the points, the equation that models the relationship is linear and you can find the slope-intercept equation which has the general form:
Where:
1. Find the slope
You can use any two ordered pairs.
m = rise/run = Δy/Δx = [220 - 275] /[1 - 0] = - 552. Find the y-intercept
The y-intercept is the value of y when x = 0; thus it is 275.
b = 2753. Substitute in the slope-intercept equation
That is the last option.
Ответ:
The manager will survey the 20th customer over the course of a week. In this option, the time period is the longest. It is a week instead of just an hour for choice C. Also, the customers are selected at random which will make for fair results.