The sat math section 5 ppsx
The sat math section 5 ppsx
... people.
Thus:
$30 + $2 .50 x = $3.00x
$30 = $ .50 x
60 = x
Therefore, 60 guests must attend. The
answer is choice a.
THE SAT MATH SECTION
164
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 164
25. c. You have ...
ᎏ
1
2
10
ho
m
u
i
r
le
s
s
ᎏ
= 55 mph
Now, all you have to do is substitute
into the formula above using the rate you
just solved for.
THE SAT MATH SECT...
The sat math section 6 ppsx
... squares.
31. d. 52 % is the same as .52 (drop the % sign and
move the decimal point two places to the
left);
ᎏ
1
2
3
5
ᎏ
=
ᎏ
2
5
6
0
ᎏ
=
ᎏ
1
5
0
2
0
ᎏ
; 52 × 100 = .52 ; And 52 ×
10
–2
= 52 × .01 = .52 . ... y) ÷ 2.
THE SAT MATH SECTION
170
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 170
25. c. You have to factor this expression accord-
ingly. Notice that...
The SAT Math Section
... 5) (x + 3)(x – 4)
ᎏᎏᎏ
(x + 5) (x – 4)
x
y
123 456 7
1
2
3
4
5
–1
–2
–3
–1–2–3–4 5 6–7
x
y
123 456 7
1
2
3
4
5
–1
–2
–3
–1–2–3–4 5 6–7
–
THE SAT MATH SECTION
–
124
56 58 SAT2 006[04](fin).qx 11/21/ 05 ... words in the math
glossary on page 255 . Learning the language of math is
very important to your success on the SAT.
Good luck!
–
THE SAT MATH SECTION
–...
THE SAT MATH SECTION 13 ppt
... + 5) (x + 3)(x – 4)
ᎏᎏᎏ
(x + 5) (x – 4)
x
y
123 456 7
1
2
3
4
5
–1
–2
–3
–1–2–3–4 5 6–7
x
y
123 456 7
1
2
3
4
5
–1
–2
–3
–1–2–3–4 5 6–7
THE SAT MATH SECTION
124
56 58 SAT2 006[04](fin).qx 11/21/ 05 ... the denominator. Then change the
decimal to a percentage.
Examples:
ᎏ
4
5
ᎏ
= .80 = 80%
ᎏ
2
5
ᎏ
= .4 = 40%
ᎏ
1
8
ᎏ
= .1 25 = 12 .5%
THE SAT MATH SECTION
117...
– THE SAT MATH SECTION – 45-45-90 Right Triangles 45° 30-60-90 Triangles In a right triangle potx
... Volume
b = Base
A
=
1
2
bh
THE SAT MATH SECTION
138
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 138
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 150
45- 45- 90 Right Triangles
A right triangle ... 2
10
65
25
l
y
x
THE SAT MATH SECTION
153
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 153
Similar Polygons
If two polygons are similar, their corre...
– THE SAT MATH SECTION – An isosceles triangle has two sides congruent and two angles opposite pot
... what is the value of y?
AB
E
F
DC
y
50 °
THE SAT MATH SECTION
1 75
5 658 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 1 75
THE SAT WRITING SECTION
188
56 58 SAT2 006[ 05] (fin).qx 11/21/ 05 6: 45 PM Page ... total questions
THE SAT MATH SECTION
1 65
5 658 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 1 65
THE SAT MATH SECTION
168
If 18 girls attended t...
The sat math section 1 potx
... outcomes
6 × 5 × 4 × 3 × 2 × 1
ᎏᎏᎏ
3 × 2 × 1
6!
ᎏ
(3)!
6!
ᎏ
(6 – 3)!
n!
ᎏ
(n – r)!
n!
ᎏ
(n – r)!
n!
ᎏ
(n – r)!
THE SAT MATH SECTION
1 45
5 658 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 1 45
The probability ... by adding the known probabili-
ties together and subtracting from 1.
THE SAT MATH SECTION
146
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 146
in one...
The sat math section potx
... 2.
b.
ᎏ
K
b
–2
ᎏ
.
c.
ᎏ
2–
b
K
ᎏ
.
d.
ᎏ
K
b
+2
ᎏ
.
e. k – 2.
RG
B
THE SAT MATH SECTION
152
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 152
40 Practice Five-Choice Questions
■
All numbers in the problems are real numbers.
■
You ... throughout a
math section on a past SAT. The distribution of
questions on your test will vary.
1. 1 8. 2 15. 3 22. 3
2. 1 9. 3 16. 5...
The sat math section 3 pps
... 12
25. Factor completely:
3x
2
– 27 =
a. 3(x – 3)
2
b. 3(x
2
– 27)
c. 3(x + 3)(x – 3)
d. (3x + 3)(x – 9)
e. 3x – 9
THE SAT MATH SECTION
154
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 154
5. ... 2π
a.
b.
c.
d.
e.
−110
0
0
0
0
xy
d
−11xy
−11xy
−11xy
−11x y
d
d
d
d
Y
ZX
Figure 1
10
8
6
Y
ZX
Figure 2
10
65
25
l
y
x
THE SAT MATH SECTION
153
56 58 SAT2 006[04](fi...
The sat math section 4 pps
... –
ᎏ
2
3
ᎏ
The answer is choice b.
(y
2
– y
1
)
ᎏ
(x
2
– x
1
)
the change in the y-coordinate
ᎏᎏᎏᎏ
the change in the x-coordinate
THE SAT MATH SECTION
161
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 ... into
two sections as shown on the following page.
G
B
~B
B
~B
~G
THE SAT MATH SECTION
159
56 58 SAT2 006[04](fin).qx 11/21/ 05 6:44 PM Page 159
Five-Choice A...