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3 years ago

X + 5y =100 x +y = 60 Which ordered pair is the solution of the system?

Mathematics

1 answer:

Simora [160]3 years ago

4 0

Answer:

lets start with the easy equation. X+Y=60. so we take 60 and subtract Y to get X by itself. meaning X = 60-Y. every time we see X replace with (60-Y).

X + 5Y = 100 change to

60-Y+5Y = 100

5Y - Y = 4y.

60+4Y = 100. 100 minus the 60 = 40. 4Y=40. divide by 4. Y = 10. ok so now we solve for X. X + Y (or 10) = 60. 60-10 = 50. X = 50.

Step-by-step explanation:

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A 12,000-lb killer whale might eat as much as 14,000 lb of fish per month (assume a 30-day month). If the average weight of a ce

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Weight of fish that the killer whale might eat in a month (30 days) = 14,000 lb

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Average weight of the fish that killer whale eats = 3.4 oz

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