3 years ago

Will mark BRAINLIST only if correct answer

Mathematics

1 answer:

Softa [21]3 years ago

4 0

Answer:

70.60

Step-by-step explanation:

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Please help algebra not hard

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Mai runs around a 400 meter track at a constant speed of 250 meters per minute. How many minutes does it take Mai to complete 4

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Answer:

6.4 minutes, or 6 minutes and 24 seconds

Step-by-step explanation:

She is running 4 laps, so she is running 1600 meters total. If she runs 250 meters per minute, divide 1600 by 250 to determine how many minutes it will take...

1600/250 = 6.4

Which is 6 minutes + 0.4 minutes

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(0.4)60 = 24 seconds,

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A^3+a+a^2+1 2a^2+2ab+ab^2+b^3

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3 years ago

In a certain chemical the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 345 of copper how many grams of zin

vekshin1

Answer:

92.

Step-by-step explanation:

By proportion the mass of zinc = (345/ 15) * 4

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