edconsys
18.02.2020 •
Mathematics
Beth and Adam each improved their yards by planting rose bushes and ivy. They bought their supplies from the same store. Beth spent $76 on 3 rose bushes and 5 pots of ivy. Adam spent $176 on 8 rose bushes and 10 pots of ivy. What is the cost of one rose bush and the cost of one pot of ivy?
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Ответ:
4. 14.0
5. 19.3 km
6. 20.0 m
Step-by-step explanation:
4. using sine law
AC/sin21 = 30/sin130
AC = (30/sin130) × sin21
AC = 14.03448401
5. BC/sin123 = 9/sin23
BC = (9/sin23) × sin123
BC = 19.31772147
6. AC/sin65 = 22/sin88
AC = (22/sin88) × sin65
AC = 19.95092488