Solving equations
Writing equations
Solutions?
Independent vs. Dependent
RANDOM
100

x + 3 =11

x=8

100

The sum of a number y and 7 is 8.

y+7=8

100

Is x=3 a solution to the equation,

7x=90

NO

100
The more you study, the better you do on your test.


What is the independent variable?

The time you study.

100
You have $20 in your bank and get $5 for every flower you sell on valentines day.  Write an equation representing how much money you make total, t after how many flowers f you sell.

t=5f+20

200

5y=120

y=24

200

The product of a number x and 5 is the same as 60

5x=60

200

Is m=4 a solution to the equation,


2m+11=19

YES

200

The more you water your plants regularly, the more they grow.


What is the dependent variable?

The amount a plant grows

200

the length of a rectangle is 6ft, the width is x, write an expression representing how to find the area.

6x

300

1/2(x)=8

x=16

300

The difference between a number x and 15 is equal to 67.

x-15=67

300

Is (1,14) a solution to the equation y=8x+3

14=8(1)+3

14=8+3

no

300

If the independent variable in a relationship is how much coffee Miss Fleming drinks, what could the dependent variable be?

-how awake she is

-how happy she is

-how tired she is (less tired hopefully)

300

You go to McDonalds and buy 5 burgers, 3 milks, and 3 apple pies.  Each burger is $3.50, a milk is $1.25,and apple pies are 2 for $1.  how much did you spend?

5(3.5)+3(1.25)+3(.5)

17.5+3.75+1.5

19+3.75

22.75

400

(3/4)(m)=27

m=36

400

Twice a number x take a way 7 is the same as 88.

2x-7=88

400

Is (13, 77) a solution to the equation,

2x + 51 = y

2(13) + 51 =77

26+51=77

YES

400

If the dependent variable in a relationship is the number of ice cream sales, what could be the independent variable?

-the temperature

-the weather

-the number of people

400
Write the phrase as an equation,

A number B is 6 more than 3 times a number A.

B= 6+3A
500

3y+9=33

y=8

500
A number y cubed and 9 is 67.

y3+9=67

500

Is (3, 16) a solution to the equation?

(1/3)x + 2x = y - 9

(1/3)(3) + 2(3) = 16-9

1+6=7

yes

500

Write your own relationship with an independent and dependent variable.

WE SHALL SEE

500

If you have $50, and want to buy 2 t-shirts, 4 pairs of pants for $8 each, and one blanket for $14, What is the maximum cost of a t-shirt you can buy? (given they are the same price?)

50=2x+4(8)+14

50=2x+32+14

50=2x+46

2x=4

x=2

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