Answer:
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Step-by-step explanation:
Answer:
Step-by-step explanation:
negative 3 over 7=
Plus 4 over 5=
When adding fractions together, you should first change into a common denominator, then do the operation.
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Hope this helps!!
Please let me know if you have any questions
That is the formula to find the volume of a sphere. It's best to just memorize it as it is hard to come up with. The (4/3) is a constant (it is always that fraction). Pi is also a constant but it is a never ending decimal number so they use the Greek number pi to represent it. Most schools use 3.14 to equal pi but some just use 3 so be sure to check with your teacher. The r here is referring to the radius of the sphere which is the measurement from the center out to the edge. To find the volume you need to multiply (4/3) times Pi times (the radius squared)
5 : 3 = 30:x where x = number of south american butterflies
5/3 = 30 / x
5x = 90
x = 18
there are 18 south american butterflies in the park