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enot [183]
3 years ago
8

4 (2x + 1) — 5х + 3x +9

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
4 0
I think it’s number b. But I’m not sure
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Q2. A train travels at a constant speed of 45 m/s. a) Calculate the distance travelled by the train in:
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Answer:

i) 1350 m

ii) 5400 m

Step-by-step explanation:

<u>Formula for Speed</u>

\boxed{\sf Speed=\dfrac{Distance}{Time}}

Rearrange the formula so that Distance is the subject:

\implies \sf Distance = Speed \times Time

<h3><u>Question (i)</u></h3>

Given:

  • Speed = 45 m/s (meters per second)
  • Time = 30 seconds

Substitute the given values into the formula for distance:

\implies \sf Distance = 45 \times 30 = 1350\:m

<h3><u>Question (ii)</u></h3>

Given:

  • Speed = 45 m/s (meters per second)
  • Time = 2 minutes

As the time is given in a different unit of time as the speed, we must first convert the time into seconds:

1 minute = 60 seconds

⇒ 2 minutes = 60 × 2 = 120 seconds

Therefore:

  • Speed = 45 m/s (meters per second)
  • Time = 120 seconds

Substitute the values into the formula for distance:

\implies \sf Distance = 45 \times 120 = 5400\:m

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1 year ago
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Identify the question that is NOT statistical.
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<span>A)What is the maximum number of swimmers allowed on a swim team?</span>
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2o + 3a = $45

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a grocery store display has 2 boxes of cereal on the top row,3 boxes in the next row,4 boxes in the next row, and so on. How man
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Please help! Fill in the blanks! :D I just need to get this done and I’ll be done with everything!!!!
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Yo sup??

x<-4 F

isn't

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