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Math Basics 1 (Exponents, Percents, Probability, Simple Algebra) Flashcards | StudBud
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Math Basics 1 (Exponents, Percents, Probability, Simple Algebra)
Math Basics 1 (Exponents, Percents, Probability, Simple Algebra)
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Answers
1
Which is the value of the following expression? 15 + 10 (2+5)² - 12
48
273
62
493
2
Use the equation 6(
x
- 8) = -24. What is the value of
x
?
-4
-12
4
22
3
Use the inequality 15 +
x
≥ 32. Which represents the values for
x
?
x ≤ 47
x ≤ 17
x ≥ 47
x ≥ 17
4
Jill lays carpet with a length of
x
+ 3 and a width of 2
x
2
+ 5. So, the area of her room is __.
2x3 + 5x + 6x2 + 15
2x3 + 6x2 + 5x
2x3 + 6x2 + 5x + 15
6x2 + 2x3 + 5x + 15
5
Glenn buys 10 shirts for $30. How many shirts can he buy for $75, if the ratio stays the same?
20 shirts
25 shirts
75 shirts
60 shirts
6
Amber bought 10 pounds of potatoes for $4.50. What is the price per pound of the potatoes?
$45.00 per pound
$14.50 per pound
$0.45 per pound
$4.50 per pound
7
A closed figure in a plane that is formed by three or more segments is a ___.
polygon
parallelogram
perimeter
area
8
A ___ is a four sided polygon with exactly one pair of parallel opposite sides
trapezoid
polygon
hypotenuse
parallelogram
9
Which expression has the greatest value?
8²/8⁵
8⁵/8²
(8⁵)²
8⁵ x 8²
10
Which expression has the least value?
271/3
82/3
42/3
161/2
11
Out of 300 total shoppers, 40% purchase non-sale items. How many shoppers does this represent?
260
340
75
120
12
A ____ degree angle can be found in every right traingle.
180
45
90
40
13
Use the inequality 8(4
g
+ 2) > 24
g
. Which represents the values for
g
?
g > -2
g ≥ 2
g < -2
g ≤ 2
14
Bob uses the equation 45 = ¾(
x
) + 15 to represent how many songs he must sell to make $45.
x
=?
40
45
60
80
15
Google has 4 job openings. There are 12 applicants. How many ways can the positions be filled?
495
11,880
384
19,958,400
16
A gym charges $40/month in 2014. In 2015 the price rises to $45/month. What was the % change?
-12.5%
12.5%
88.9%
11.1%
17
Factor the expression 2
x
2
+ 4
x
- 30.
(x + 10)(x - 6)
(2x + 5)(x -3 )
(2x + 10)(2x - 6)
2(x + 5)(x - 3)
