Victory for the ACT Student Text 15e

V ICTORY P RACTICE T EST • 391

54. •–—†‡–•…‘–”‹„—–‡† y dollars ‡ƒ…Š –‘ „—› ƒ ̈́ͳͺ ‰‹ˆ– ˆ‘” –Š‡‹” ƒ†˜‹•‘”Ǥ ˆ –Š”‡‡ ‘”‡ •–—†‡–• Šƒ†…‘–”‹„—–‡†ǡ ‡ƒ…Š •–—†‡– …‘—Ž† Šƒ˜‡…‘–”‹„—–‡† ‘‡ †‘ŽŽƒ” Ž‡•• –‘ „—› –Š‡ •ƒ‡ ‰‹ˆ–Ǥ Š‹…Š ‘ˆ –Š‡ ˆ‘ŽŽ‘™‹‰ •‡–• ‘ˆ ‡“—ƒ–‹‘• ‡š’”‡••‡• –Š‹• ”‡Žƒ–‹‘•Š‹’ǫ Ǥ xy 18 and ( ) ( ) x y 3 1 18 + − = Ǥ xy 18 and ( ) ( ) x y 3 1 18 − + = Ǥ xy 18 and ( ) ( ) x y 3 1 18 + + = Ǥ xy 18 and ( ) ( ) x y 3 1 18 − − = Ǥ xy 18 and ( ) ( ) x y 1 3 18 + − = 55. 2 1 112 28 2 63 − + = ? Ǥ 6 7 Ǥ Šƒ– ‹• –Š‡ ˜ƒŽ—‡ ‘ˆ x ˆ‘” –Š‡ ˆ‘ŽŽ‘™‹‰ •‡– ‘ˆ •‹—Ž–ƒ‡‘—• ‡“—ƒ–‹‘•ǫ  ƒ †”ƒƒ…Ž—„ǡ x ͹ ͹ Ǥ 8 7 Ǥ 9 7 Ǥ 10 7 56.

DO YOUR FIGURING HERE.

x y 1 1 x y 1 1

4 1 + = 4 3 − =

Ǥ Ͷ Ǥ ʹ Ǥ 2 1 Ǥ 4 1 Ǥ Ͷ

57. Š‹…Š •‡–…‘—Ž† ”‡’”‡•‡– –Š‡ Ž‡‰–Š• ‘ˆ –Š‡ •‹†‡• ‘ˆ ƒ –”‹ƒ‰Ž‡ǫ Ǥ ȓͳǡ ͵ǡ ͸Ȕ Ǥ ȓʹǡ Ͷǡ ͹Ȕ Ǥ ȓʹǡ ͳͲǡ ͳʹȔ Ǥ ȓͶǡ ͸ǡ ͺȔ Ǥ ȓͶǡ Ͷǡ ͳͲȔ

GO ON TO THE NEXT PAGE.