faithyholcomb
21.12.2019 •
Mathematics
Write a let statement, an equation, solve: jeremy is 14 years old. this is 4 1/2 years more than half his sisters age. how old is his sister
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Ответ:
J = 1/2S + 4 1/2
14 = 1/2S + 9/2multiply everything by 2 to get rid of fractions
28 = S + 9
28 - 9 = S
19 = S
check...
14 = 1/2S + 9/2S = 19
14 = 1/2(19) + 9/2
14 = 9 1/2 + 9/2
14 = 19/2+ 9/2
14 = 28/2
14 = 14 (correct)
so the sister is 19 <===
Ответ:
8 full shelves
Step-by-step explanation: 236 dvd's divided 28 on each shelf = 8.428...
You must round this answer to become 8 because you can't have 8.4 of a dvd.