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kupik [55]
3 years ago
7

At a school carnival, three students spend an average of $10. Six other students spend an average of $4. What is the average amo

unt of money spent by all nine students?
Mathematics
1 answer:
user100 [1]3 years ago
6 0
$54 (if 10 for each of the 3 students and 4 dollars each of the 6 students) 
$14 if not
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Answer:

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Explanation:

Making a scale drawing requires that the figure be similar, which implies that the sides of the figures be proportional.

The proportion for a drawing 30 cm wide and unknown length with the soccer field that is 120 yards long and 80 yards wide is:

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Thus, using x for the unknown width of the drawing:

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Thus, you must solve for x:

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Hence, the field in Lexie's drawing should be 20 cm long.

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