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1 Use the fact that ZABC and ZCBD are complementary angles to find mZEBF. 35° B 35° 125° B 55° 145° 2 Which of the following is NOT a measure of an angle in the figure below? \2x (2x + 12)° 60° (x + 2)º B A A 27° 54° ® 29° D 66° 3 In the figure below, ZBFC and 2CFD are complementary angles. If MZAFB is 6° less than MZDFE, what is mZAFB? B. A• F A 51° 42° (B 48° 39° OHoughton Mfin Harcourt Publishing Company

1 Use the fact that ZABC and ZCBD are complementary angles to find mZEBF. 35° B 35° 125° B 55° 145° 2 Which of the following is NOT a measure of an angle in the figure below? \2x (2x + 12)° 60° (x + 2)º B A A 27° 54° ® 29° D 66° 3 In the figure below, ZBFC and 2CFD are complementary angles. If MZAFB is 6° less than MZDFE, what is mZAFB? B. A• F A 51° 42° (B 48° 39° OHoughton Mfin Harcourt Publishing Company

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Standards-Based Practice Name MAFS.7.G.2.5 1 Use the fact that ZABC and ZCBD are complementary angles to find mZEBF. 4 Which of the following angles have a measure that is less than 40° if ZBHC and ZCHD are complementary angles? D (3х + 11)° Be (4x - 5)° 35° (Зх + 3) F A E (2x + 14)° A• H (5х - 19)° A 35° 125° В 55° O 145° A LAHB O ZDHF ® ZBHC ® ZFHG 2 Which of the following is NOT a measure of an angle in the figure below? © ZCHD 5 In the figure below, ZAFB and ZBFD are complementary angles. What is mZCFD? \2x (2x + 12)° 60° F (x + 2)° B. A A A 27° © 54° 32°/(x + 9)° ® 29° 66° (2х - 8° F 3 In the figure below, ZBFC and ZCFD are complementary angles. If MLAFB is 6° less than MZDFE, what is mZAFB? A 32° 30° ® 28° 58° B D A• PE F A 51° 42° ® 48° 39° Grade 7• Standards-Based Practice • MAFS.7.G.2.5 49 OHoughton Miffin Harcourt Publishing Company
Transcribed Image Text:Standards-Based Practice Name MAFS.7.G.2.5 1 Use the fact that ZABC and ZCBD are complementary angles to find mZEBF. 4 Which of the following angles have a measure that is less than 40° if ZBHC and ZCHD are complementary angles? D (3х + 11)° Be (4x - 5)° 35° (Зх + 3) F A E (2x + 14)° A• H (5х - 19)° A 35° 125° В 55° O 145° A LAHB O ZDHF ® ZBHC ® ZFHG 2 Which of the following is NOT a measure of an angle in the figure below? © ZCHD 5 In the figure below, ZAFB and ZBFD are complementary angles. What is mZCFD? \2x (2x + 12)° 60° F (x + 2)° B. A A A 27° © 54° 32°/(x + 9)° ® 29° 66° (2х - 8° F 3 In the figure below, ZBFC and ZCFD are complementary angles. If MLAFB is 6° less than MZDFE, what is mZAFB? A 32° 30° ® 28° 58° B D A• PE F A 51° 42° ® 48° 39° Grade 7• Standards-Based Practice • MAFS.7.G.2.5 49 OHoughton Miffin Harcourt Publishing Company
Standards-Based Practice Name MAFS.7.EE.1.2 1 Which of the following equations means that "y decreased by 35%" is the same as "0.65 times y"? 3 Which of these equations expresses the cost for a pair of shoes that is marked down 20% of the regular price, r, and includes 5% sales tax on the marked (A 0.35y 0.65y down price? В у - 0.35у — 0.65y 1.05(0.20r) = 0.21r © y + 0.65y = 0.35y ® 1.05(r - 0.20r) = 0.84r Оу+ 0.35y - 0.65y %3D 1.05r 0.20r = 0.85r D 1.05(r + 0.20r) = 1.26r 2 Which of these situations can be modeled by the equation n + 0.5n – 0.3n = 1.2n, where n is the number of nickels 4 Which of these expressions represent the sum of the areas of the triangles shown? originally in the jar? A Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the remaining number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday. ® Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the original number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday. 6 x + 4 х-2 Select all the correct expressions. A 6 x (x ® 6(x + 4) + (x – 2)) + 4) + (x – 2)) 3(x + 4) + (x - 2)) Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the new number of nickels. There O 3(2x + 2) © 12x + 12 are 20% more nickels in the jar after Monday than before Friday. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the original number of nickels. There are 20% more nickels in the jar after Monday than before Friday. Grade 7• Standards-Based Practice • MAFS.7.EE.1.2 33 OHoughton Mifin Harcourt Publishing Company
Transcribed Image Text:Standards-Based Practice Name MAFS.7.EE.1.2 1 Which of the following equations means that "y decreased by 35%" is the same as "0.65 times y"? 3 Which of these equations expresses the cost for a pair of shoes that is marked down 20% of the regular price, r, and includes 5% sales tax on the marked (A 0.35y 0.65y down price? В у - 0.35у — 0.65y 1.05(0.20r) = 0.21r © y + 0.65y = 0.35y ® 1.05(r - 0.20r) = 0.84r Оу+ 0.35y - 0.65y %3D 1.05r 0.20r = 0.85r D 1.05(r + 0.20r) = 1.26r 2 Which of these situations can be modeled by the equation n + 0.5n – 0.3n = 1.2n, where n is the number of nickels 4 Which of these expressions represent the sum of the areas of the triangles shown? originally in the jar? A Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the remaining number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday. ® Amanda takes out 50% of the nickels in the jar on Friday and adds a number of nickels that is equal to 30% of the original number of nickels in the jar on Monday. There are 20% fewer nickels in the jar after Monday than before Friday. 6 x + 4 х-2 Select all the correct expressions. A 6 x (x ® 6(x + 4) + (x – 2)) + 4) + (x – 2)) 3(x + 4) + (x - 2)) Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the new number of nickels. There O 3(2x + 2) © 12x + 12 are 20% more nickels in the jar after Monday than before Friday. Amanda adds 50% of the original number of nickels to the jar on Friday. The number of nickels Amanda takes out on Monday is equal to 30% of the original number of nickels. There are 20% more nickels in the jar after Monday than before Friday. Grade 7• Standards-Based Practice • MAFS.7.EE.1.2 33 OHoughton Mifin Harcourt Publishing Company
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