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yaroslaw [1]
3 years ago
10

Maria can read 20 pages of economics in an hour. She can also read 50 pages of sociology in a hour. She...? Maria can read 20 pa

ges of economics per hour. She can also read 50 pages of sociology in an hour. She spends 5 hours per day studying.
a.) Draw maria's production possibilities frontier for reading economics and sociology. Maria can read 20 pages of economics in an hour. She can also read 50 pages of sociology in a hour. She...? Maria can read 20 pages of economics per hour. She can also read 50 pages of sociology in an hour. She spends 5 hours per day studying.
a.) Draw maria's production possibilities frontier for reading economics and sociology.
b.) What is maria's opportunity cost of reading 100 pages of sociology? Follow 1 answer 1 Report Abuse Are you sure you want to delete this answer? Yes No;
b.) What is maria's opportunity cost of reading 100 pages of sociology?
Mathematics
1 answer:
denis-greek [22]3 years ago
8 0
B.) Marua will spend 2 hours to read 100 pages of sociology which means she can only read 60 pages of economics.
Therefore, the opportunity cost of reading 100 pages of sociology is forfeiting 40 pages (2 hours) of economics.
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Answer:

Step-by-step explanation:

Given that a solution containing 12% alcohol is to be mixed with a solution containing 4% alcohol to make 20 gallons of solution containing 9% alcohol.

Let x gallons of 12% alcohol be mixed with y gallons of 4% alcohol.

Total gallons= x+y = 20

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b) Two equations are

x+y = 20\\12x+4y = 180

c) This is of the form Ax = B

where A =\left[\begin{array}{ccc}1&1\\12&4\end{array}\right]

Inverse is \frac{1}{4-12} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\=\frac{-1}{8} \left[\begin{array}{ccc}4&-1\\-12&12\end{array}\right]\\

Solution set is A inverse *B

= x \    12.5\\y  \     7.5

7 0
3 years ago
EXTREMELY URGENT GEOMETRY! 15 POINTS!<br><br> PLEASE HELP
zhenek [66]

Answer:

20.3 units

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RSM wants to send four of its 18 Math Challenge teachers to a conference. How many combinations of four teachers include exactly
tatiyna

Answer:

1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.

Step-by-step explanation:

The order in which the teachers are chosen is not important, which means that the combinations formula is used to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

1 from a set of 2(Either Mrs. Vera or Mr. Jan).

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1120 combinations of four teachers include exactly one of either Mrs. Vera or Mr. Jan.

4 0
3 years ago
The distance a bike travels varies directly as the amount of time the bike has been ridden. Angela is riding her bike. If she tr
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Answer:

420 miles

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
57.036 in word form and in expanded form.
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Here is the answer: 

Expanded Form: 50 + 7 + 0.03 + 0.006

Word Form: Fifty plus seven plus zero point zero three plus zero point zero zero six
7 0
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