Distances 64024

Eleven trees are planted on the street at equal distances. If they planted three more trees, the spaces between them would be 12 m shorter. What is the distance in meters between the first and the last tree?

Correct answer:

x =  520 m

Step-by-step explanation:

x=(111) a x=(141) (a12)  10ax=0 13ax=156  Pivot:Row1Row2 13ax=156 10ax=0  Row21310 Row1Row2 13ax=156 0.23x=120  x=0.23076923120=520 a=13156+x=13156+520=52  a=52 x=520=520 m

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