21% reptiles, 11% are birds. There are a total of 1,500 animals in the zoo. Is this the correct proportion that I wrote to solve?
21/100=r/1,500***
11/21=r/1,500
11/100=r/1,500
100/21=r/500
What is the opposite of 62/7?
26/7
-7/62
7/62
-62/7****
Both of your answers are correct.
Thx!
To verify if your proportion is correct, you can cross-multiply and check if the equation holds true. Let's use the proportion 21/100 = r/1500 as an example.
Cross-multiplying gives you 21 * 1500 = 100 * r. Simplifying this equation, you get 31500 = 100r. Then, divide both sides by 100: 31500/100 = r. This gives you r = 315.
Therefore, according to the proportions, there would be approximately 315 reptiles in the zoo.
For the second question, the opposite of 62/7 can be found by simply flipping the numerator and the denominator. So, the opposite of 62/7 would be -7/62.
Please note that when referring to "opposite," it generally means taking the opposite sign or inverting the fraction, not finding the reciprocal.