4-4: I can solve a one-step equation.

4-4: I can solve a one-step equation.

10-3: I can find square roots.

10-2: I can solve a two-step equation.

10-1: I can represent a real-world situation with a two-step equation.

Definitions

100

Solve.
m + 12 = 10

What is m=-2?

100

√256

What is 16?

100

Solve.
6x + 8 = 50

What is x=7?

100

The equation y = 12x + 60 can be used to estimate y, the height of a tree in centimeters x months after it is planted. When a tree is 150 cm tall, how long ago was the tree planted?

What is 7.5 months?

100

A mathematical sentence that shows the two expressions are equivalent.

What is an equation?

200

Solve.
-2 = g - 9

What is g=7?

200

√9

What is 3?

200

Solve.
7 - 3x = 34

What is x=-9?

200

To become a member at a gym, you must pay a start-up fee of $100 plus $25 each month. Write an equation for the total bill t in terms of the number of months m.

What is t = 25m + 100

200

A mathematical phrase that contains operations, numbers, and/or variables.

What is an expression?

300

Solve.
-7y = -91

What is y=13?

300

Which number is not a rational?
0.8, 2/3, π, or –5

What is π, pi?

300

Solve.
13 = -4x + 9

What is -1=x or x=-1?

300

Alexis opened a savings account with a $3500 deposit. Each
week she will put $120 into the account. Write an equation for the account balance b in terms of the number of weeks, w.

What is b = 120w + 3500?

300

Operations that undo each other: addition and subtraction, or multiplication and division.

What is an inverse operation?

400

Solve.
a÷9 = -4

What is a=-36?

400

Which number is not a rational?
√24, √25, √81, or √100

What √24?

400

Solve.
2x - 5 = 11

What is x=8?

400

Maria pays a monthly fee of $53.95 plus $0.05 per minute for long distance calls. Write an equation for the phone bill p in terms of the number of minutes m.

What is p = 0.05m + 53.95

400

A mathematical statement that two ratios are equivalent.

What is a proportion?

500

Solve.
f - 50 = 75

What is f=125?

500

Which numbers are rational?
√1000, √100, √47, or √0.25

What is √100 and √0.25

500

Solve.
4m - 6 = 10

What is m=4?

500

A taxi charges a $10.50 flat fee plus $0.55 per mile. Write an equation for taxi fare t in terms of miles m.

What is t = 0.55m + 10.50

500

The symbol, √, means this.

What is square root?

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