Asked by Sabrina
Patty went to visit her cousins for the weekend. She drove 260 km in 2 h 45 min, some of it on a 100 km/h highway and the rest on 80 km/h roads.
THIS ANSWER MUST BE ANSWERED AS A LINEAR SYSTEM OF EQUATIONS
THIS ANSWER MUST BE ANSWERED AS A LINEAR SYSTEM OF EQUATIONS
Answers
Answered by
mathhelper
distance on the faster hiway --- x km
distance on the slower hiway --- y
x + y = 260
x/100 + y/80 = 11/4
each term times 400
4x + 50y = 1100
take it from there to solve for x and y
distance on the slower hiway --- y
x + y = 260
x/100 + y/80 = 11/4
each term times 400
4x + 50y = 1100
take it from there to solve for x and y
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