Download - 3.7B HW Answers. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 7.5 5 20 12 12,000 30 decrease 45 decrease 33% 300 B
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3.7B HW Answers
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p = 5
-30
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20. reciprocalassociativedividenddivisorquotientdistributemultiplicative identityfactorproduct
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Scoring Your Homework• Count how many problems you missed
or didn’t do• 0-1 missed = 10• 2-3 missed = 9• 4-5 missed = 8• 6-8 missed = 7• 9-10 missed = 6
• 11-13 missed = 5• 14-15 missed = 4• 16-17 missed = 3• 18-19 missed = 2• 20-22 missed = 1• 23-27 missed = 0
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Daily Check• Only grade one per group
• No talking to other groups
• No copying!
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1. You bought a sweater on sale for $15. The original price of the sweater was $40. What percent of the original price was the sales price?
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2. On a test of 80 items, a student got 60 correct. What percent were correct?
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3. You have filled 15% of a 30-gallon aquarium with water. How much water have you put into the aquarium?
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4. Find the discount price of a tent with a price of $80 and a discount of 15%
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5. A car salesperson had sales of $85,000 one week and a 15% decrease in sales the next week. What was the amount of sales the second week?
A. 12,750 B. 80,000C. 72,250 D. 97,750
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Resource Managers• Put the teams homework and daily
checks in the folder on the right side
• Turn folders in
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Table of ContentsTopic Page #...3.5/3.6 Ratios and Proportions 413.7 Percents 433.7B Solve Percent Problems 454.1 Plot Points 47
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#47
4.1 Plot Points
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Coordinate Plane:Where two number lines cross
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-5 -4 -3 -2 -1 0 1 2 3 4 5
543210-1-2-3-4-5
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X-axis:The # line that is horizontal and represents all x #s
Y-axis:The # line that is vertical and represents all y #s
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-5 -4 -3 -2 -1 0 1 2 3 4 5
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y
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Quadrants:The 4 regions of the coordinate plane, named counter-clockwise
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Quadrant IQuadrant II
Quadrant III Quadrant IV
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Ordered Pair:First number is the x-coordinate and the second number is the y-coordinate.(x, y)
x is domain, y is range
First you walk, and then you fly
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y
Quadrant IQuadrant II
Quadrant III Quadrant IV
(3, 2)
(-4, 5)
(-5, -2)(1, -3)
(-3, 0) (0, 2)
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Origin:Where the two axis meet
(0, 0)
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-5 -4 -3 -2 -1 0 1 2 3 4 5
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x
y
Quadrant IQuadrant II
Quadrant III Quadrant IV
(3, 2)
(-4, 5)
(-5, -2)(1, -3)
(-3, 0) (2, 0)
origin
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Ex: Graph y = 2x – 1 with the domain of -1, 0, 1, 2, and 3
x y = 2x – 1 y (x,y)-10123
y = 2(-1) – 1 -3y = 2(0) – 1 -1y = 2(1) – 1 1y = 2(2) – 1 3y = 2(3) – 1 5
(-1, -3)(0, -1)(1, 1)(2, 3)(3, 5)
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Ex: Graph y = x2 – 1 with the domain of –2, -1, 0, 1, 2
x y = x2 – 1 y (x,y)-2-1012
y = (-2)2 – 1 3y = (-1)2 – 1 0y = (0)2 – 1 -1y = (1)2 – 1 0y = (2)2 – 1 3
(-2, 3)(-1, 0)(0, -1)(1, 0)(2, 3)
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