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Eighth Grade Weekly Homework Week 3 Date: August 22 Name: Power Standards 7.1 Fractions, Decimals, Percent 7.3 Integer Operations MONDAY TUESDAY WEDNESDAY 5.2 x 103 3.7 x 104 4.3 x 104 Put in order from greatest to least. 19% 19.0 1.9 x 10 19/20 2 1.9% What percentage is shaded? Use a number line to model What is |8 | + |-4| ? -7 + 4 -8 -6 -4 -2 2 THURSDAY Order from greatest to least. 0.2% 0.20 ⅛ 2.5 x 10- 2 Put in ascending order. =1 -4 + (-8) - 7 = 0 W. Dews 4 = -1 2(-5) Model the problem. Jim can solve 4 math problems in 7 minutes. At this rate, about how many problems can he solve in 25 minutes? It takes Kevin 3 hours to cut 4 acres of grass while it takes Kelly 9 hours to cut 12 acres of grass. Is this proportional? Explain. Solve the proportion. If three more black marbles are added, what is the probability of selecting a black marble? The table shows the results of 50 rolls of a fair number cube numbered 1 to 6. 1 2 3 4 5 6 8 9 6 15 2 11 What is the experimental probability of rolling a 3? The probability of selecting a red tile is 25% The probability of selecting a green tile is 40%. What is the probability of selecting a tile that is green, replace it, and then select a tile that is not red? A deck of cards contained 3 red cards, 9 purple cards, 4 green cards and 2 blue cards. If two cards are selected with replacement, what is the probability that the first card a red and the second card was blue. Complete a table of values and graph the following function rule. Complete the table for the given equation. y = -2x +2 Graph on a coordinate plane. Shonda rented a car for $25 per day plus $0.50 for each mile. If she kept the car for 4 days and drove 100 miles, what was the total cost? If k=-2, what is the value of Substitute and simplify. Write each phrase as an algebraic expression. Write and solve the equation. k2 - (k – 8) + 3k w + (x + y +z)2 = 7.14 Equations Write the equation and solve. Four less than five times a number is equal to 11. Solve and check. Solve. 7.15 Inequalities What is the solution to the inequality 2y > -8? What inequality is represented by the graph? Select all numbers that would satisfy the inequality 2x > 10 5 6 4 7 10 2 Graph. x > -1 Identify the number property. Apply the Distributive Property to complete the following statement: 4(x + 5) = _________________________ Re-write the following expression using the associative property of addition. (-14 + 5) + 12 Apply the Zero Property of Multiplication to complete the following statement: 254 x _____ = ______ 7.4 Proportional Reasoning 7.9 Probability 7.12 Functional Relationships y=x-2 7.13 Order of Operations, Algebraic Expressions 7.16 Number Properties Thirteen less than a number is twenty five. (4 9) 11 = 4 (9 11) x y -1 0 1 2 miles in 14 minutes 61 miles in k minutes 2 w = -3, x = 5, y = 6, z = -4 2 x = -2 3 The length of a house is 65 feet. The scale of the model is 2 in:3 ft. What will be the length of the model? ten less than m a number less 4 Last Friday, Jeremy had $35. Over the weekend, he received some money for shoveling snow. He now has a total of $68. How much money did he earn shoveling snow?