A water park sold 8 child tickets and 72 adult tickets. What percentage of the tickets sold were child tickets?
1 answer:
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The functions are:
and 
.
After 2 weeks, under no risk of spiders, the population of the flies is calculated by the function as
.
Similarly, we calculate s(2)=2(2)+5=4+5=9, which means that the spider consumes 9 flies in 2 weeks.
Thus, out of 32 flies, 9 are eaten by the spider, so there are 32-9=23 flies left.
Answer: 23
After 2 weeks, under no risk of spiders, the population of the flies is calculated by the function as
Similarly, we calculate s(2)=2(2)+5=4+5=9, which means that the spider consumes 9 flies in 2 weeks.
Thus, out of 32 flies, 9 are eaten by the spider, so there are 32-9=23 flies left.
Answer: 23
Method 1:
Look at the picture.
is greater than
Method 2:
Find the common denominator:
multiples of 7: 0, 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ...
multiples of 9: 0, 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...
63 = 7 · 9
therefore
