Monday, November 6, 2017

Scores from Practice

1. How many centimeters in a kilometer - express in scientific notation.
Well, there are 100 centimeters (think 100 cents in a $, 100 yrs in a century) and 1000 meters in a kilometer, so there a 100x1000=100,000 cm in a km. In scientific notation that's 1 x 105
or 1.0 x 10would also be acceptable.
2. Solve 3x= 147   Divide both sides by 3 to get x= 49. So x could be 7 or -7.
3. Simplify [(4a-3bc5)/b2c] -1
The -1 exponent tells you to take the reciprocal - flip the numerator and denominator
b2c/(4a-3bc5) Again, the negative exponent tells you to move the a into the numerator
a3b2c/4bc5
Simplify - we've got b's in num. and denom. a3bc/4c5
Simplify more - we've got c's in num. and denom.  a3b/4c4
4. You sell 40 bunches of broccoli per day. Each bunch weighs 1.2 pounds. If there are 24 lbs of broccoli in a bushel, how many bushels do you sell in a week?
40 bunches @ 1.2 lbs = 40x1.2=48 lbs a day. Thats exactly 2 bushels a day time 7 days in a week is 14 bushels in a week.
5. Graph |2x + 9| ≥ 8   which means either 2x + 9 ≥ 8  or -(2x + 9) ≥ 8 Simplify both.
2x + 9 ≥ 8        -(2x + 9) ≥ 8
2x ≥ -1              -2x + -9 ≥ 8
≥ -½               -2x  17 (remember to flip the inequality sign when mult. or div. by neg.)
                            x ≤ -8.5
So a solid dot on -8.5 with a line to the left AND
a solid dot on -.5 with a line to the right.
HERITAGE

8 Kathryn Lewis 10 8 24.0
6 Quinn Hendel 7 4 20.3
5 Noah Ledermann 0 0 15.0
5 Anna Crain 4 4 14.3
5 Ashton Rocke 0 0 11.0
6 Gray Gallant 5 4 9.0
5 Caleb Koury 0 0 8.0
5 Zoe Lewis 0 0 8.0
6 John McCarten 6.0
7 Jonathan Neumann 4 2 5.0
5 Adiah Giles 0 0 0.0
FRIENDLY HILLS
Oscar Halverson12638.0
Kallie Frett8832.7
Thomas Hoffman6632.0
Cyrus Martin Risch6630.0
Stella Warwick11626.3
Lucy Palmer6626.0
Nina Kessler9824.3
Miles Dunn12623.0
Nick Wendt2622.3
Luke Reisig7221.0
Erik Essen8620.8
Katherine Meyers7620.7
Victoria Dzurilla3620.0
Claire Newmark5218.7
Charles Cheesebrough4616.7
Shakti Gurung2116.0
Duy Hoang8213.7
Lucia Schomer4013.7
Will Geddes1013.7
Sophia Schomer2212.7
Vanshika Pallerla2012.3
Tommy Larsen5012.3
John Joyce1011.7
Will Gannon11.0
Henry Stein0011.0
Jack Grosenick10.0
Bennett Fritz109.7
Nolan Manternach109.7
Elyse Jahn009.0
Landon Monsour009.0
Mia Cheesebrough408.7
Quinn Fraley107.7
T J Kronschnabel007.0
Anna Kessler006.0
France Edrian Ditalo05.0
Elise Newmark005.0
Edy Halverson4.0
Tyler Demulling400.0
Sahasra Juvva0.0
Daniella Sanchez4.0
Ellie Ludwig403.7

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