Miscellaneous
What is more: The number of feet in a mile, or the number of pounds in a ton?
Feet in mile
y = 2x + 3
y + 2x = 11
(2,7)
-2x + 2y = 10
2x + 3y = 15
(0, 5)
|x + 3| = 4
X = 1 or x = -7
Is the inequality y > 2x - 2 a dotted line or a solid line? Will it be shaded above or below?
Dotted line, shaded above
“Obelus” is a symbol that has a horizontal line with a dot above it and a dot below it, what does this symbol represent?
Division
3x + y = 7
-4x + 3y = 60
(-3, 16)
10x + 6y = 20
10x +4y = 10
(-1, 5)
|6 + 3x| = 9
X = -5 or x = 1
Solve 16x + 8y > -32 for y
What is the only PRIME number that is also EVEN?
Two (2)
2x - 2y = 10
-3y + 4x = 17
(2, -3)
2x - 4y = 10
3x + 8y = 8
(4, -0.5)
9|x - 4| < 81
-5 < x < 13
Solve 3/4(5x - y) < 3 for y
Google (the search engine) was named after a number called “Googol”. What is a Googol?
3x + 1/2y = 14
-2x - 4y = -24
2x + 4y = 3
3y + 7x = 6
(0.68, 0.41)
|x - 12| / 4 < 1
8 < x < 16
5(5x - 4) < 3(2 + 8x) - 17
X < 9
What mathematical theory explains the randomness of nature?
The Butterfly Effect
-1/2x + 1/3y = 15
x - y = 10
(-110, -120)
-1/2x + 5/2y = 10
4y + 2x = 8
(-2.86, 3.43)
-5/8|3x + 5| < -5
x > 3 or x < -13/3
A music store is selling posters and CDs. Each poster gives a profit of $3.00 and each CD gives a profit of $5.00. The store needs to make a profit of more than $200 per hour to stay in business. Let x represent the number of posters sold and y represent the number of CDs sold. Write an inequality showing how many of each item (posters and CDs) the store needs to sell per hour to make a sufficient profit.
3x + 5y > 200