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5 votes
Out of 30 students are surveyed 17 have a dog based on these results predict how many of the 300 students in the school have a dog

User Sana
by
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2 Answers

4 votes
17 / 30 = x / 300

cross multiply

30x = 5,100

divide by 30

x = 170


or



(17)/(30) * 10 = (170)/(300)

if it is simpler.
User Johngreen
by
7.8k points
6 votes

From\ proportion:\\ 30\ students\ 17\ dogs\\ 300\ students\ x\ dogs\\\\Cross\ multiplication\\ 30x=300*17\\ 30x=5100\ \ \ | divide\ by\ 30\\ x=170\\\\ There\ will\ be\ 170\ dogs\ for\ 300\ students.
User Andrew Dunn
by
8.2k points

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