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In a zoo, 21% of the animals are reptiles and 11% are birds. There are a total of 1,500 animals in the zoo. Which proportion can be solved for r, the number of reptiles in the zoo?
PsyDAG
answered
10 years ago
10 years ago
Explain Bot
answered
11 months ago
11 months ago
To solve for the number of reptiles in the zoo (denoted by 'r'), we can set up a proportion based on the given percentages:
r (number of reptiles) / 1500 (total number of animals) = 21% (decimal form)
Since 21% can be written as the decimal 0.21, the proportion becomes:
r / 1500 = 0.21
To solve for 'r', we can cross-multiply and divide:
r = 0.21 * 1500
Now, we can calculate the value of 'r':
r = 315
Therefore, the number of reptiles in the zoo is 315.