two trains leave towns 480 km apart at the same time and travel toward each other. one train travels 18 km/h faster than the oth
1 answer:
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Answer:
subs with credentials get paid $87 per day. subs without credentials get paid $55 per day.
Step-by-step explanation:
let x be the cost subs with credential get paid per day and y be the cost subs without credential get paid per day
so we get
using simultaneous equation by substitution method you get x=87 and y=55