What is the solution to -2(3x - 9) + 5x = -10?
1 answer:
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(1) Using trigonometric ratios:
(2) Using Pythagoras' Theorem:
(3) Using sine rule:
(2) Using Pythagoras' Theorem:
(3) Using sine rule:
Use multiplication:
This question is basically the same as the other question of yours that I answered, so the explanation is very similar:
You can imagine the possibilities as leaves on a tree. Your tree has 2 large branches to represent the two possible sizes. Each of those branch off into 8 smaller branches, each representing a crust flavor. Each one of the smaller branches has 8 leaves to represent a different topping. Each leaf is a combination of a size, a crust flavor, and a topping, so it represents a complete pizza. Your job is to calculate the number of leaves.