ALGEBRA 1 ASSIGNMENT 2.1 NAME SHOW ALL WORK in order to list the consecutive integers that fit the given criteria. 1) 3 consecutive integers have a sum of 27. 2) 4 consecutive integers have a sum of -50. 3) 3 consecutive odd integers have a sum of 15. 4) 5 consecutive even integers have a sum of 90. 5) 4 consecutive odd integers have a sum of -8. 6) 3 consecutive integers have a sum of 39. Each integer is 4 more than the previous one. ALGEBRA 1 ASSIGNMENT 2.2 NAME List the calculations needed to find missing value that leads to the desired average. Calculate on the first step only in order to simplify the fraction. (See example) EX) Given: 3, 5, 8, 6, 3 Desired average: 6 7) Given: 9, 5, 6, 12 Desired average: 8 8) Given: 3, 11, 26, 4, 10 Desired average: 13 9) Given: 86, 90, 84, 91 Desired average: 90 10) Given: Average of 6 values is 30 Desired average: 35 11) Given: Average of 9 values is 108 Desired average: 110 ALGEBRA 1 ASSIGNMENT 2.3 NAME List the calculations needed to solve for the variable in each equation. If an equation has either infinite or no solutions, say so. Calculate only the distributions & the like terms in the first inverse operations. (See example) EX) 4x 7 2x 31 12) 3k 5 7k 21 13) 5n 9 3n 7 14) 3 4q 10q 10 15) 13 6 y 29 11y 16) 6c 56 4(3c 5) 17) 3(1 d ) 5 3d 2 18) 3(2n 5) 0.5(12n 20) 19) 2( w 3) 5 3( w 1) Translate each verbal sentence into an algebraic one, then show the steps to solve it as before. 20) The sum of 4 times a number and 15 is equal to the difference of 6 times the number and 11. 21) Double a number, increased by 6, is three less than five times the number. ALGEBRA 1 ASSIGNMENT 2.1B NAME SHOW ALL WORK in order to list the consecutive integers that fit the given criteria. (2 POINTS EACH) 22) You have a set of 2 consecutive integers. Four times the greater integer is 1 more than 5 times the lesser integer. 23) You have a set of 3 consecutive even integers. Three times the third integer is the same as increasing twice the first integer by 38. 24) You have a set of 2 consecutive odd integers. Doubling the greater integer is equal to 13 less than 3 times the lesser integer. 25) You have a set of 3 integers, each one being 3 higher than the previous one. The sum of the second and third integers is 1 more than 4 times the first integer. ALGEBRA 1 ASSIGNMENT 2.4 NAME Use inverse operations to rewrite/solve each formula for the variable specified. 26) Solve for x: 27) Solve for m: 28) Solve for a: 29) Solve for n: x y 7 km 3 a 4 b n v 10 30) Solve for r: 31) Solve for p: 32) Solve for b: d rt p 6 4q b 2x c 33) Solve for z: 34) Solve for y: 35) Solve for t: xy z w 3 yz 5 I prt EXTRA CREDIT – Each of these equations require TWO inverse operations in order to be rewritten. *) Solve for r: **) Solve for x: ***) Solve for w: r 9 h 5 2x 4 y 8 P 2l 2w ALGEBRA 1 ASSIGNMENT 2.5 NAME List the appropriate calculations needed to solve for the missing value in each proportion. Calculate ONLY the initial multiplication on problems with addition sentences (and distributions, if you choose to use them). EX) 6 x 15 25 1) 20 x 28 21 EX) x 2 22.5 4 10 4) 6 7 14 x 3 2) 16 9 7 b 5) 3) 2 8 0.21 n 5 60 3 x 12 Create the proportion for each situation, then list the appropriate calculations. 6) Jun earns $152 in 4 days. At that rate, how many days will it take him to earn $532? 7) The scale on a map states that 2 centimeters = 40 kilometers. If two cities are 3.2 centimeters apart on the map, what is their actual distance apart in real life? 8) What number is 40% of 80? 9) 25 is 125% of what number? 10) 45 is what percent of 30? ALGEBRA 1 ASSIGNMENT 2.6A NAME Create the equation for each situation, then list the appropriate calculations needed to solve it. Show all calculations only for the underlined parts of each question. 11) A group of kids who own a lemonade stand, Misty, May and Dawn, divide their profits each day from the lemonade stand they run. They typically divide the profits into shares at a ratio of 2:3:4, based on their respective contributions. Last Saturday, there was a total of $120 in profits. Find the value of each share of the profits last Saturday. Then, determine how much money each girl took home from the profits. 12) In the same situation from #1, there was $120 again the following week, but Dawn was sick, so she did not take part. So, the other girls split the profit according to the number of shares they normally take. Find the value of each share of the profits this time. Then, determine how much money each girl took home from the profits. Calculate the percent of change. Calculate only the raw change. EX) Original: $9 New: $12 13) Original: 50 New: 70 14) Original: 58 New: 152 15) Original: 15.6 New: 11.4 16) Original: 85 New: 90 ALGEBRA 1 ASSIGNMENT 2.6B NAME Create the equation for each situation, then list the appropriate calculations needed to solve it. Show all calculations only for the underlined parts of each question. Calculate the final cost of each item after applying the tax or discount. EX) A $40 coat with a 6% sales tax 18) A $45 shirt with a 40% discount 17) A $14 umbrella with a 5.5% sales tax 19) An $18.50 hat with a 6.25% sales tax *) A $120 lamp on a 20% discount with a 6% sales tax Calculate the simple interest to the nearest penny. (Convert percents and units of time appropriately.) 20) $2500 earning 4% interest for 3 years 21) $5000 earning 2% interest for 40 months 22) $12000 earning 3.5% interest for 13 weeks