Transcript Algebra

OMG! Algebra is easy. First, an “expression” is just a number
sentence. For example, if you wanted to buy the Wii games and you
didn’t know how much these games cost you could show this
“number expression” by writing.
3 x _The blank is there because it’s what you don’t know, the cost of
each game. With algebra, instead of a blank you put a letter. It could
be any letter X, Z, G… Usually the letter is the first letter of the thing
you talking about. So to write an algebraic expression you would
write:
3 x C.
3 because you want 3 games and C because you don’t know the
Cost of each game.
Mrs. Sweetland gives 3 bonus points for each extracredit problem correctly completed. If b stands for
the number of extra-credit problems correctly
completed, which expression is equal to the total
number of bonus points?
 a. b x 3
 C. b ÷ 3
 e. 3 > b
b. b + 3
d. b - 3
I Know my answer is right because
It can’t be anything else because
It says 3 bonus’s b
Stands for number that we don’t
Know yet. Then you have the answer
Witch is A. B*3
Find the value of y.
x-y=y
x = 10





A.
B.
C.
D.
E.
32
16
4
5
2
The answer is D.5 because x=10 and so your
answer has to be D.5
10-5=5 because x-y=y
There are to so they have to be the same and
10-5=5 there are 2 5’s.
You know how to find the sum of the angles of a
polygon. The sum of the angles for a triangle (3
sides) is 180. The sum of the angles of a
quadrilateral (4 sides) is 360. The sum of the angles
of a pentagon (5 sides) is 540. If “S” is the amount
of sides, which expression can be used to illustrate
this way of finding the sum of the angles of any
polygon.
45




A. (S – 2) * 180
B. S + (2 + 180)
C. 180 * S
D. (360 x 2)
90
You add up the angles and the sum for
any triangle is 180
45
90
45
45
180
120
90
90
100
90
You add up the angles and
the sum for any square or
rectangle or 4 sided figure
and the sum is 360
90
90
90
90
360
100
90
110
110
You add up the angles and
the sum for any 5 sided
figure and the sum is 540
The answer is
360 and 540
110
110
100
100
120
540
180
360
720
540
-360
180
How I got the answer is I took
540-360 to get 180 so I figured
That you just take 540+180
540
540
+180
720
How I got the answer is
because 75
+50
125
How much fencing is needed to
go around the perimeter of this
yard?
How I got the answer to this is
the same way I got the answer to
the other one.
65
+35
100
How much sod is needed to
cover this yard?
One angle of a RIGHT triangle is 30
degrees. Which expression shows how to
find the measure of the third angle?
???
30
90
A. 3* 180=A
B. 3 * 90 + 60=A
C. (360 / 3) - 90
D. 180 – 90 – 30=A
Thanksgiving
Parade
1/2
.50
50%
Fraction
Floats
Marching
Bands
Clowns
TV Stars
City
official
s
Total
people
Calvin’s little brother jumped up and down. “Here they come!”
shouted Calvin. Around the corner came the Thanksgiving
Day Parade. Half of the people were on floats; 25% were in
marching bands; clowns made up 1/8; tv stars made up 1/16;
and there were 10 city officials, or 1/16. How many people
were in the parade, and how many were in each group?
Decimal
Percent
Whole
Number/to
tal number
of people
About how much of each hour does a radio program
schedule for weather?
A. 1/10
B. B. 2/10
C. C. 3/10
D. D. 5/10
E. E. 10/10
How many minutes of each hour does a radio program schedule for weather?
Which table of values satisfies the equation shown below?
y=x
+4
D. Is the correct answer because 0+4,1+4,2+4,and 3+4
Then last you get your answer.
What is the value of the expression
below when x = 6 and y = 2?
8x – y
The answer is 46 because 8*6=48-2=46
46
What’s the volume
Ninja flip
10(8-3)-(-10)