Use the cross products to decide whetherthis proportion is true or false.512 = 45iT14Use the cross products to decide whetherthis proportion is true or false.512 = 452:2 ÿ 4:2 = 101:2 ÿ 5:2 = 11pSince the cross products are c2EQUALc0,the proportion is c2TRUEc0.
true
2(2,19)1(1,20)3(2,10)n(1=2)
4(1e3*)5(2e3*)10(2e4*)11(1e5*)n(4l10l/z<>5l10l/z)
Use the cross products to decide whetherthis proportion is true or false.512 = 45iT14Use the cross products to decide whetherthis proportion is true or false.512 = 452:2 ÿ 4:2 = 101:2 ÿ 5:2 = 11pSince the cross products are c2EQUALc0, theproportion is c2TRUEc0.
true
2(2,19)1(1,20)3(2,10)n(1=2)
4(1e3*)5(2e3*)10(2e4*)11(1e5*)n(4l10l/z<>5l10l/z)
Use the cross products to decide whetherthis proportion is true or false.512 = 45iT14Use the cross products to decide whetherthis proportion is true or false.512 = 452:2 ÿ 4:2 = 101:2 ÿ 5:2 = 11pSince the cross products are c2EQUALc0, theproportion is c2TRUEc0.
true
2,5(2,19)1(1,20)4(1,30)n(1=2)n(4=5)n(4<10&5<10)
10(2e4*)11(1e5*)n(10=11)
Use the cross products to decide whetherthis proportion is true or false.512 = 45iT14Use the cross products to decide whetherthis proportion is true or false.512 = 452:2 ÿ 4:2 = 101:2 ÿ 5:2 = 11pSince the cross products are c2NOT EQUALc0,the proportion is c2FALSEc0.
Use the cross products to decide whetherthis proportion is true or false.5 112 3 = 217iT14Use the cross products to decide whetherthis proportion is true or false.5 112 3 = 217+483 ÿ 21 = 2320Convert to an improper20fraction. 112 ÿ 7:2 = 222 ÿ 7p8 = 24pSince the cross products are #if(22<>21)c2NOTc0 #endifc2EQUALc0,the proportion is #if(22=21)c2TRUEc0.#elsec2FALSEc0.#endif
Use the cross products to decide whetherthis proportion is true or false.5 112 3 = 217iT14Use the cross products to decide whetherthis proportion is true or false.5 112 3 = 217+483 ÿ 21 = 2320Convert to an improper20fraction. 112 ÿ 7:2 = 222 ÿ 7p8 = 24pSince the cross products are #if(22<>21)c2NOTc0 #endifc2EQUALc0,the proportion is #if(22=21)c2TRUEc0.#elsec2FALSEc0.#endif