Chapter 8 Review

simplifying expressions

100

3x+2x-4x

x

200

5x-4+8x

13x-4

300

-7y-8y-2y+7y

-10y

DOUBLE POINTS

400

3(9z-3z)+2

18z+2

1000

5x+3(2x-4)-2(3x+1)+4x-(x-5)+6

8x-3

creating equations and expressions

100

If I can buy 10 liters of gasoline for 1350 Yen how much is 1 liter???????? 💅🤔🤔🤔🤔

135 yen

200

If I can buy 10 gallons of juice for 1350 Yen how much is 15 gallons???????? 💅🤔🤔🤔🤔

2,025 yen

300

Panna is 10 more than quadruple Sofia's age. if S=Sofia's age, create an expression that represents Panna's age in terms of S.

4s+10

400

If Max is double Yunnu's age that is half of Sofia's age that is 25 what is Max's age.

Max is 25 

(probably)

1000

2 adults and some children went to the movies. The child ticket costs 3/4 of the adult ticket, which costs 1200 yen. The total cost was 5100 yen. 

How many children went to the movies?

3 children

solving equations

100

x+21=25

x=4

200

z-120=232

z=352

300

4zx8=160

z=5

400

3(9y+2)-5=136

y=5

1000

12(5y+y)-34=38

y=1

creating inequalities

100

a number is more than 20

x>20

200

6767 is greater that z

6767>z

300

the minimum of a number is 21

x is equal to or greater that 21

400

the maximum of a number is 1,243

x is equal to or less than 1,243

1000

x is at most (10-11)

x is equal to or less than -1

mixed review

100

what is 10 percent of a 100

10

200

1/2x2/4

0.25 

300

what is 21 percent of 500

105

400

12/10 divided by 15/10

4/5 or 0.8

1000

5x-3+25x+21-7x

23x+18