Investigate rational numbers: investigation 1
1. what is the length of each section of the number bine? select all that apply.
a.
c. 0.20
5
f. 2
d. 0.25
2. idenury the value of each of the points on the numberine
02
point a
point b
point
0.9
point d
3. for each of the following, state which of the labeled points represents the opposite of
the given value.
-0.8
-0,8
4. leon is monitoring the depth of the yough river to determine how close it is to the
average depth, over 5 days last week, he found that the river was over or under the
1 1
average depths by the following amounts: 1,25,-
1 and 0.5. explain how you
would represent these values on a number line. include your representation in your
answer.
i'm my little sister with her homework and i hate math sooo

Acaterer knows he will need 60, 50, 80, 40 and 50 dinner napkins on five successive evenings. he can purchase new napkins initially at 25 cents each, after which he can have dirty napkins laundered by a fast one-day laundry service (i.e., dirty napkins given at the end of the day will be ready for use the following day) at 15 cents each, or by a slow two-day service at 8 cents each or both. the caterer wants to know how many napkins he should purchase initially and how many dirty napkins should be laundered by fast and slow service on each of the days in order to minimize his total costs. formulate the caterer’s problem as a linear program as follows (you must state any assumptions you make): a. define all variables clearly. how many are there? b. write out the constraints that must be satisfied, briefly explaining each. (do not simplify.) write out the objective function to be minimized. (do not simplify.)