What’s Goin’ On In Room 133

Posts Tagged ‘two step equations’

Solve each problem by first writing and equation that fits.  You may even want to draw a simple diagram to illustrate the dynamics involved.  Then solve the equation.

EQ 1.  Addie has $825 in her savings account.  She has decided to deposit $65 per month until she has a total of $1,800.  In how many months will this occur?

EQ 2.  YeVale likes skydiving.  Suppose she jumps from an airplane (a perfectly good airplane, mind you) at an altitude of 12,000 feet.  After 42 seconds, she reaches 4,608 feet and she opens her parachute.  What was her average velocity during her descent (freefall)?

EQ 3.  The water level of Lambert Run has risen to 4 inches above its flood stage.  If it continues to rise steadily at 2 inches per hour, how long will it take for the river to be 12 inches above its flood stage?

Rock on, colleagues!

Gloria’s Furniture Rental store charges a down payment of $100 and $75 per month for a table.  Matthew paid $550 to rent the table.  

So solve 75n + 100 = 550 to find the number of months Matthew rented the table.

Meanwhile, in a room above Gloria’s store, Jamal has to stuff 1,000 envelopes with advertisements.  He can stuff 12 envelopes in one minute, and he has 112 envelopes already finished. 

So solve 1,000 = 12n + 112 to find how many minutes it will take Jamal to handle his business!

Ask the, uh, older folks in your house if they remember the old rock and roll song that goes “Gimme three steps, gimme three steps, mister…”  Then, while they go wandering around playing ”name that tune” in their heads, you can click on the link below and check out a cool video on two-step equations.  There you’ll meet Tim and Moby on BrainPop and they’ll tell you all about it.  (The equations, yo; not the song!)

Anyway, log in as “walkergrant” and use the password “wgms”.  That will take you to the opening screen where you’ll see Moby’s hand counting down to the start of the movie.  And when it says “Click here to start the movie”, well, click it!

http://www.brainpop.com/math/algebra/twostepequations/

Oh, as for your folks, you can tell ‘em it was by Lynyrd Skynyrd on their first album (”pronounced ‘leh-’nerd ’skin-’nerd”) back in 1973.  You know, when you feel like it.

MAJOR UPDATE, YO!  Extra credit on your mind?  Trying to make up for that missing assignment somewhere?  Try taking the Quiz at the end of the movie.  It’s only 10 questions – and you get a chance to email the results to yourself (or me at medwards@cityschools.com) or print them off so that you can bring it in.  Either way, it’s free points, yo!  –mr e