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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