Ms. Wilson sets up a pond water aquarium in the classroom. Ms. Wilson tells the class there are five different kinds of aquatic animals in the aquarium. There are caddis fly larvae, diving beetles, whirligig beetles, dragonflies and tadpoles: Ms. Wilson says one-twelfth of the pond animals are dragonflies. One-third of the animals are caddis fly larvae. One-fourth are tadpoles. There are the same number of diving beetles as whirligig beetles. If there are six dragonflies, how many pond critters are in the aquarium? How many caddis fly larvae, tadpoles, diving beetles and whirligig beetles are in the aquarium? Show all your mathematical thinking.

Ms. Wilson sets up a pond water aquarium in the classroom. Ms. Wilson tells the class there are five different kinds of aquatic animals in the aquarium. There are caddis fly larvae, diving beetles, whirligig beetles, dragonflies and tadpoles: Ms. Wilson says one-twelfth of the pond animals are dragonflies. One-third of the animals are caddis fly larvae. One-fourth are tadpoles. There are the same number of diving beetles as whirligig beetles. If there are six dragonflies, how many pond critters are in the aquarium? How many caddis fly larvae, tadpoles, diving beetles and whirligig beetles are in the aquarium? Show all your mathematical thinking.

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Concept explainers

Counting Principles

In statistics, the counting principle can be said to be the concept in which the quantity of an item is determined. There can be a single item, or a group of items, or items that are related to each other. In every possible set of items, the quantity of the possible item groups or their sorting measures can be determined with counting principles.

Question

Ms. Wilson sets up a pond water aquarium in the classroom. Ms. Wilson tells the class
there are five different kinds of aquatic animals in the aquarium. There are caddis fly
larvae, diving beetles, whirligig beetles, dragonflies and tadpoles:
Ms. Wilson says one-twelfth of the pond animals are dragonflies. One-third of the
animals are caddis fly larvae. One-fourth are tadpoles. There are the same number of
diving beetles as whirligig beetles. If there are six dragonflies, how many pond critters
are in the aquarium? How many caddis fly larvae, tadpoles, diving beetles and whirligig
beetles are in the aquarium? Show all your mathematical thinking.

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