Warm Up October 31, 2011

What is the main goal in a football game?

What is the main goal in a basketball game?

What is the main goal in a baseball game?

Warm Up October 27, 2011

What is the main goal in a football game?TO SCORE A TOUCHDOWN

What is the main goal in a basketball game?TO MAKE A FIELD GOAL

What is the main goal in a baseball game?TO SCORE A RUN

To score a touchdown, field goal, or run, all players must follow the…

RULES!

Solving Equations

Just like in a game of sports…

there’s a goal

there are rules

Solve for n n – 8 = 20

+ 8 +8 n = 28

Solve for n n ÷ 7 = 8

*7 * 7 n = 56

You are writing invitations to a party. It takes your four minutes to complete each invitations. Write an equation for finding n, the number of invitations you can complete in one hour.

4n = 60÷4 ÷ 4

n = 15 invitations

Solving Equations

Solve for n3n – 8 = 192n + 3 = 13

Solve for n n – 8 = 20

+ 8 +8 n = 28

Solve for n n ÷ 7 = 8

*7 * 7 n = 56

Solving Equations

Solve for n3n – 8 = 19 +8 +8 3n = 27 ÷3 ÷3 n = 9

Check 3(9) – 8 = 19 27 – 8 = 19 19 = 19

Solving Equations

Solve for n2n + 3 = 13 -3 -3 2n = 10 ÷2 ÷2 n = 5

Check 2(5) + 3 = 13 10 + 3 = 13 13 = 13

Solving Equations

Solve for nn ÷ 3 + 17 = 32 -17 -17 n ÷ 3 = 15 x 3 x 3 n = 45

Check 45 ÷ 3 +17 =32 15 + 17 =32 32=32

Which process is done first?

5n + 7 = 23

÷ 5 ÷ 5

5n + 7 = 22

- 7 - 7 5n = 15

÷ 5 ÷ 5

n = 3

Solve the following equations.

2n + 1 = 7 3y – 4 = 2

Solve the following equations.

c ÷ 3 - 7 = 5.3 32 = n ÷ 3 + 17

Write an equation to solve…You pay $35 in dues to a photo club

and $10 per roll you have developed. If you spend $225 during the year, how many rolls of film do you have developed?

10n + 35 = 225