Three girls download a total of 36 songs on their iPods. Jane downloaded twice as many as Inez and since Tracy wanted to have th e most she downloaded one more than Jane did. How many songs did each girl download?
1 answer:
J + i + t = 36 j = 2i t = j + 1.....t = 2i + 1 (2i + 1) + i + (2i) = 36 5i + 1 = 36 5i = 36 - 1 5i = 35 i = 35/5 i = 7 <=== Inez downloaded 7 songs j = 2i = 2(7) = 14 <==Jane downloaded 14 songs t = 2i + 1 = 2(7) + 1 = 15 <== Tracy downloaded 15 songs
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Answer: length = 75 cm
Step-by-step explanation:
61 x 2 = 122
272-122= 150
150 divided by 2 = 75
check: 75+61= 136
136 x 2 = 272
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