Find the missing length of the triangle. 20 km 21 km WHAT IS “C” PLEASE HELP
2 answers:
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Answer:
5
Step-by-step explanation:
given that x and y are proportional, they can be expressed as y = rx, where r is the proportionality constant. Thus, we can solve for r by doing y/x in any given point.
Your proportion should look something like this
After cross multiplication, you should end up with this equation
After dividing 4 on both sides, you should get that x=9
After cross multiplication, you should end up with this equation
After dividing 4 on both sides, you should get that x=9