irina is watching a 3 hour movie on tv. The shaded part of the fraction model below represents the part

3 × 5/6 = 15/6 hours (option D)

Complete Question:

Irina is watching a 3 hour movie on TV. The shaded part of the fraction model

below represents the part of each hour that the movie is playing, and the

unshaded part represents the time spent on commercials. Which equation

represents the total number of hours for the movie, not including the time for the commercials?

a) 3+ 5/6 = 8/6 hours

b) 3 x 5/6 = 15/18 hour

c) 3+ 5/6 = 8/8?9 hour

d) 3 x 5/6 = 15/6 hours

The complete information and diagram can be found in:

Step-by-step explanation:

Total time of movie = 3hr

The model shows the amount of time spent on the movie and the amount spent on commercials.

We are required to find the total number of time spend on the movie without including the time spent on the commercials for the 3hours duration of the movie.

From the diagram, the total number of squares in the diagram is seen as a whole = 1

The amount of time the movie is playing per hour = the shaded region = 5/6

The amount of time spent on commercials = 1 - (5/6) = 1/6

After 3 hrs, the amount of time spent in playing the movie = (5/6) × 3hours

= (5/6) × 3

After 3 hrs, the amount of time spent in playing the movie = 15/6

The equation that represents the total number of hours for the movie, not including the time for the commercials: 3 × 5/6 = 15/6 hours

only 10/60 isn't equivalent

hope this : )

when functions are first introduced, you will probably have some simplistic "functions" and relations to deal with, usually being just sets of points. these won't be terribly useful or interesting functions and relations, but your text wants you to get the idea of what the domain and range of a function are. small sets of points are generally the simplest sorts of relations, so your book starts with those.

step-by-step explanation:

state the domain and range of the following relation. is the relation a function?

{(2, –3), (4, 6), (3, –1), (6, 6), (2, 3)}

the above list of points, being a relationship between certain x's and certain y's, is a relation. the domain is all the x-values, and the range is all the y-values. to give the domain and the range, i just list the values without duplication:

domain: {2, 3, 4, 6}

range: {–3, –1, 3, 6}

(it is customary to list these values in numerical order, but it is not required. sets are called "unordered lists", so you can list the numbers in any order you feel like. just don't duplicate: technically, repetitions are okay in sets, but most instructors would count off for this.)

while the given set does indeed represent a relation (because x's and y's are being related to each other), the set they gave me contains two points with the same x-value: (2, –3) and (2, 3). since x = 2 gives me two possible destinations (that is, two possible y-values), then this relation is not a function.

note that all i had to do to check whether the relation was a function was to look for duplicate x-values. if you find any duplicate x-values, then the different y-values mean that you do not have a function. remember: for a relation to be a function, each x-value has to go to one, and only one, y-value.

state the domain and range of the following relation. is the relation a function?

{(–3, 5), (–2, 5), (–1, 5), (0, 5), (1, 5), (2, 5)}

i'll just list the x-values for the domain and the y-values for the range: