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melamori03 [73]
3 years ago
8

What is the value of (-12) + (- 33)? Can someone explain the steps to the answer please?.. ASAP

Mathematics
1 answer:
mina [271]3 years ago
5 0

Answer:

(-12) + (-33) = (-45)

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Step-by-step explanation:

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Step-by-step explanation:

1)$2000×(1/3)= $666.67

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What is the solution to the equation 2 (x-3) ^2 =13 help help ASAP !
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Answer:

3+sqrt(13/2)

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Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The
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Answer:

  • 800 kph
  • 600 kph

Step-by-step explanation:

<u>Equation</u>

Let s represent the speed of the faster plane. Then its travel time is ...

  time = distance/speed = 3600/s

travel time for the slower plane is ...

  time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

  3600/(s -200) -3600/s = 1.5

<u>Solution</u>

Multiplying by (2/3)s(s -200), we get ...

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The positive value of s that makes a factor zero is s = 800.

<u>Conclusion</u>

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

<em>Check</em>

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

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