Question

pls answer me first by substitution or eliminations method
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Answer 1

Answer:

please make me brientliest

Answer 2

Step-by-step explanation:

Let the speed of car at A be x kmph and the speed of car at B be y kmph

As per the question,

5x - 5y = 100 =

X-y = 20 ... (1)

and x + y = 100 ... (2)

Solving (1) and (2), we get,

X = 60 and y = 40

Speed of the car at A = 60 kmph

Speed of the car at B = 40 kmph

Hope it helps you.