smartpeep
19.11.2019 •
Mathematics
Anna is working two summer jobs, making $18 per hour lifeguarding and making $11 per hour clearing tables. in a given week, she can work a maximum of 14 total hours and must earn at least $210. if anna worked 12 hours clearing tables, determine the minimum number of whole hours life guarding that she must work to meet her requirements. if there are no possible solutions, submit an empty answer.
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Ответ:
there is no answer so leave it blank pls
Ответ:
they sell 240 sw =)))
Step-by-step explanation:
x= the number of b water they sold
y= the number of sw they sold
because they sold a total of 390 items => x+y= 390 (1)
because they sold water for $2 a bottle and the sandwiches for $4 each => 2x + 4y= 1260 (2)
(1) and (2) => x=150 ; y=240.
i hope this will help you =)))