a. b x 3b. b + 3 c. b ÷ 3d. b - 3 e. 3 > b

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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. - PowerPoint PPT Presentation

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Page 1: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b
Page 2: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

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.

Page 3: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

Mrs. Sweetland gives 3 bonus points for each extra-Mrs. Sweetland gives 3 bonus points for each extra-credit problem correctly completed. If b stands for the credit problem correctly completed. If b stands for the number of extra-credit problems correctly completed, number of extra-credit problems correctly completed, which expression is equal to the total number of bonus which expression is equal to the total number of bonus points?points?

a. b x 3a. b x 3b. b + 3b. b + 3

C. b ÷ 3C. b ÷ 3 d. b - 3d. b - 3

e. 3 > be. 3 > b

I Know my answer is right becauseIt can’t be anything else becauseIt says 3 bonus’s bStands for number that we don’t Know yet. Then you have the answerWitch is A. B*3

Page 4: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

Find the value of y. Find the value of y. x - y = y x - y = y x = 10x = 10

A.A. 3232 B.B. 1616 C.C. 44 D.D. 55 E.E. 22

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 and10-5=5 there are 2 5’s.

Page 5: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

You know how to find the sum of the angles of a You know how to find the sum of the angles of a polygon. The sum of the angles for a triangle (3 polygon. The sum of the angles for a triangle (3 sides) is 180. The sum of the angles of a sides) is 180. The sum of the angles of a quadrilateral (4 sides) is 360. The sum of the quadrilateral (4 sides) is 360. The sum of the angles of a pentagon (5 sides) is 540. If “S” is the angles of a pentagon (5 sides) is 540. If “S” is the amount of sides, which expression can be used to amount of sides, which expression can be used to illustrate this way of finding the sum of the angles illustrate this way of finding the sum of the angles of any polygon.of any polygon.

A.A. (S – 2) * 180(S – 2) * 180 B.B. S + (2 + 180)S + (2 + 180) C. 180 * SC. 180 * S D. (360 x 2) D. (360 x 2)

90

45

45

454590

180

You add up the angles and the sum for any triangle is 180

Page 6: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

90

9090

90

360

You add up the angles and the sum for any square or rectangle or 4 sided figure and the sum is 360

90 90

9090

110110

100 100

120

You add up the angles and the sum for any 5 sided figure and the sum is 540

110110

100100120

540

The answer is 360 and 540

Page 7: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

180

360

540

720

How I got the answer is I took 540-360 to get 180 so I figured That you just take 540+180

540 -360180

540 +180720

Page 8: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

How much fencing is needed to go around the perimeter of this yard?

How I got the answer is because 75+50125

How I got the answer to this is the same way I got the answer to the other one.65+35100

Page 9: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

How much sod is needed to cover this yard?

Page 10: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

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

Page 11: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

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?

Thanksgiving Parade

FractionFraction DecimalDecimal PercentPercent Whole Whole Number/toNumber/total number tal number of peopleof people

FloatsFloats

Marching Marching BandsBands

ClownsClowns

TV StarsTV Stars

City City officialofficial

ss

Total Total peoplepeople

1/2.50

50%

Page 12: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

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?

Page 13: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

Which table of values satisfies the equation shown Which table of values satisfies the equation shown below?below?

yy = = xx

D. Is the correct answer because 0+4,1+4,2+4,and 3+4Then last you get your answer.

+4

Page 14: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

What is the value of the expression What is the value of the expression below when below when xx = 6 and = 6 and yy = 2? = 2? 88xx – – yy

The answer is 46 because 8*6=48-2=46

46

Page 15: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

What’s the volumeWhat’s the volume

Page 16: a.  b x 3b.   b  + 3 C.  b ÷ 3d. b - 3 e. 3 > b

Ninja flipNinja flip

10(8-3)-( 10)10(8-3)-( 10)-