Answer:
They traveled 780
Explanation:
Got it right on the test
x = 465 km
y = 735 km
Step 1: Write out equations
x + y = 1200
y = x + 270
Step 2: Find x using substitution
x + (x + 270) = 1200
2x + 270 = 1200
2x = 930
x = 465
Step 3: Plug in x to find y
y = 465 + 270
y = 735
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