math
posted by micheal .
Review example 2 How does the author determine what the?
Example 2. Translate. The first row of the table and the fourth sentence of the
problem tell us that a total of 63 pupae was received. Thus we have one
equation: p+q=63
Since each pupa of morpho granadensis costs $4.15 and p pupae were
received, 4.15p is the cost for the morpho granadensis species. Similarly,
1.50q is the cost of the battus polydamus species. From the third row of
the table and the information in the statement of the problem, we get a
second equation: 4.15p+1.50q=147.50
We can multiply by 100 on both sides of this equation in order to clear
the decimals. This gives us the following system of equations as a
translation: p+q=63, (1)
415p+150q=14,750. (2)
Solve. We decide to use the elimination method to solve the system.
We eliminate q by multiplying equation (1) by 150 and adding it to
equation (2): 150p  150q = 9450 Multiplying equation (1) by 150
415p +150q=14,750
263p =5300 adding
p =20. solving for p
To find q, we substitute 20 for p in equation (1) and solve for q:
p+q=63 Equation (1)
20+q=63 Substituting 20 for p
q=43. Solving for q
We obtain (20,43),or p=20, q=43
Respond to this Question
Similar Questions

Math
Tell me how to figure out these probabilities In how many different orders can 9 people stand in line? 
CollegeArticle Review
Part A asks for: A one or two paragraph description of the work's physical structure and any information about the author you may have discovered (ex. magazine title, author, date published). Keep in mind that I cannot write a bibliography/works … 
Chemistry
I am really stuck on these so will try and explain further and use dots. 1. I have come up with normal heptane on this but not sure .......CH3...CH3 ............ CH3CHCCH2CCH2CH3 ........... ....CH3..CH2.CH2 ......... .........CH3 … 
English 102
I am not asking anyone to do my homework, i am just asking for some gudies. I need to do a fullsentence outline on samesex marriage. i have some ideas i would just like some adivce. I. Main point 1 in a complete sentence. What Christians … 
PreAlgebra
Okay so I have no clue how to determine if a relation is a function. Here is an example can you tell me how to determine this? 
Math Block Problem
A child organizes animal blocks in rows on the ground. There are 64 animal blocks in the 5th row & 92 of those blocks in the 9th and last row. Suppose that the number of animal blocks frm row to row form an arithmetic sequence. The … 
algebra
Explain in your own words what it means for an equation to model a real world situation an give an example. it is right to say that when given a problem, we want to identify the quality of the problem we want to find, translate form … 
Finte Math  Simplex Method
Just a few questions to make sure I am understanding the simplex method. First you set up matrice, then you find the column with the largest negative number in bottom row. That is the column you will pivot. So then how do you determine … 
Java programming
can anybody help me.. Multidimensional Array Use a twodimensional array (for example of 3 by 3) to simulate the addition operation of two matrices. Sample output: the first matrix: 1 2 3 1 0 1 1 2 1 the second matrix: 1 1 1 2 2 2 … 
pronoun
When he arrive at the cafe', Zach started preparing the scones, cookies,and muffins. While bread for sandwiches was purchased from a nearby bakery, he made these himself. Anybody looking for a stale pastry would have to try Starbucks …