to visit the two conversatories at garden by the bay, 11 adults and 5 children have to pay dollar 280 whereas 14 adults and 9 children have to pay dollar 388. Find the total amount of family of 2 adults and 3 children has to pay to visit the two conversatories.
Answers
Answered by
10
Answer:
76
Step-by-step explanation:
11A +5C = 280
14A +9C =388
99A +45C = 2520
70A + 45C = 1940
29A = 580
A = 20
11*20 +5C = 280
5C = 60
C = 12
2A +3C
= 2*20 + 3*12
= 76
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