0.10 x+0.20 y=0.18(x+y)Clayton will mix x milliliters of a 10 % by mass saline solution with y milliliters of a 20 % by mass saline solution in order to create an 18 % by mass saline solution. The equation above represents this situation. If Clayton uses 100 milliliters of the 20 % by mass saline solution, how many milliliters of the 10 % by mass saline solution must he use?
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Two types of tickets were sold for a concert held at an amphitheater. Tickets to sit on a bench during the concert cost $75 each, and tickets to sit on the lawn during the concert cost $40 each. Organizers of the concert announced that 350 tickets had been sold and that $19,250 had been raised through ticket sales alone. Which of the following systems of equations could be used to find the number of tickets for bench seats, B, and the number of tickets for lawn seats, L, that were sold for the concert?
In the passage, when Miss Spivey announces that she had seen camels, the students' reaction suggests that they are
As compared with Silas's gold, Eppie is portrayed as having more
The passage is written from the point of view of a
An unstated assumption made by the authors about clover is that the plants
For i=sqrt(-1), what is the sum (7+3 i)+(-8+9 i) ?
According to the table, which of the following pairs of base percentages in sea urchin DNA provides evidence in support of the answer to the previous question?
The main purpose of the first paragraph is to
One central theme of the passage is that
Calma indicates that in the past, the Australiangovernment stressed which aspect of its relationshipto indigenous peoples?
y<-x+a y>x+b In the x y-plane, if (0,0) is a solution to the system of inequalities above, which of the following relationships between a and b must be true?
According to the passage, Maguire's findings regarding taxi drivers are significant because they
If p percent of an adult's daily allowance of potassium is provided by x servings of Crunchy Grain cereal per day, which of the following expresses p in terms of x ?
Based on the passage, in studying the Venus flytrap, Volkov and his colleagues made the most extensive use of which type of evidence?
The primary purpose of each passage is to
Which statement best describes a technique the narrator uses to represent Silas's character before he adopted Eppie?
y =x^2 2 y+6 =2(x+3) If (x, y) is a solution of the system of equations above and x>0, what is the value of x y ?
9 x^2If x>0, which of the following is equivalent to the given expression?
According to the passage, G.L. differed from Olausson's other test subjects in terms of the
x f(x) 0 3 2 1 4 0 5 -2 The function f is defined by a polynomial. Some values of x and f(x) are shown in the table above. Which of the following must be a factor of f(x) ?
According to the passage, exposure to light allows seeds to
Which choice best describes a major theme of the passage?
In the passage, Parsons mainly presents herself as someone who is
If (x-1)/3=k and k=3, what is the value of x ?