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Temka [501]
3 years ago
15

There are 4 lunch choices in a school cafeteria: Salad, Pizza, Spaghetti, and Sub Sandwiches. The percentage of students that ch

ose salad is 15%. If 45 students chose salad, what is the total number of students that ate lunch
Mathematics
1 answer:
Elina [12.6K]3 years ago
8 0
I think it would be 300, because 15% of x=45, so .15x=45, x= 45/.15=300
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Answer:

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Step-by-step explanation:

5 0
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Tickets to the school play are $5.00 for adults and $3.50 for students. If the total value of all the tickets sold was $2517.50
Irina-Kira [14]
x-\ adults\\
y-\ students\\\\  \left \{ {{5x+3.50y=2517.5} \atop {x+100=y}} \right.\\\\
5x+3.5(x+100)=2517.5\\\\
5x+3.5x+350=2517.5\ \ \ | subtract\ 350\\\\
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x=255\\\\
y=355\\\\
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3 years ago
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