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3 years ago

Please help (speed practice)

Mathematics

2 answers:

igomit [66]3 years ago

6 0

Answer:

3.5hrs

Step-by-step explanation:

Speed=80km/hr

distance=400km

time=x

time=distance

speed

time=400km

80km/hr

T=5hrs

ki77a [65]3 years ago

6 0

The answer is 3.5 hours

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Answer:

Part 1) The solution of the system of equations is (2,-5)

Part 2) The solution of the system of equations is (2,4)

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Part 1) Linear combination

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$4x-y=13$ -----> equation B

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The first gives 15k profits (45-30)

The second has a loan of 25,000 over 18 months, which is 1.5x 15 = %22.5 interest you have to pay on this loan, which is 5625 dollars (.225 * 25000), added to the loan of 25,000 is 30,625 and a rev of 40k, which profits ~10k so not the right ans

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