sarah192002
12.07.2019 •
Mathematics
06.01) saturday morning there were 7 adults and 20 kids at pump and jump land. the morning cash registers show $236 was collected. in the afternoon there were 21 adults and 50 kids for a total amount of $618. what is the cost for 1 adult?
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Ответ:
The correct answer is $8
Step-by-step explanation:
I just scored the test
Ответ:
y= number of kids tickets sold
7x+20y=236
21x+50y=618
solve for x
Ответ:
Step-by-step explanation:
average for 3 tests >90
total for 3 tests>90×3
or total for 3 tests>270
total of 2 tests=92+96=188
so score in third test >(270-188)
or >82