Yes,give me de 2 remaining but with clearly stated plus de ones that are done(english plz)

English

ScanSolve AI Answer

Step-by-step solution

9 steps

Here are the problems that have been completed:

  1. Magnetic separation (identifying the method and explaining why some metals might remain).
  2. Rectangle dimensions and fencing cost (calculating length, width, perimeter, and total cost).
  3. Income terms (providing formulas for Gross Income, Monthly Income, Taxable Income, Income Tax, and Net Income).

Now, let's tackle the two remaining problems from your image.


Remaining : Car's speed and distance

a) The speed of the car in km/h.

  1. Convert the distance from meters to kilometers.

    Given distance =1200 m= 1200 \text{ m}.
    Since 1 km=1000 m1 \text{ km} = 1000 \text{ m}:

    1200 m=12001000 km=1.2 km1200 \text{ m} = \frac{1200}{1000} \text{ km} = 1.2 \text{ km}
  2. Convert the time from seconds to hours.

    Given time =120 s= 120 \text{ s}.
    Since 1 hour=60 minutes=60×60 seconds=3600 seconds1 \text{ hour} = 60 \text{ minutes} = 60 \times 60 \text{ seconds} = 3600 \text{ seconds}:

    120 s=1203600 hours=130 hours120 \text{ s} = \frac{120}{3600} \text{ hours} = \frac{1}{30} \text{ hours}
  3. Calculate the speed using the formula Speed=DistanceTime\text{Speed} = \frac{\text{Distance}}{\text{Time}}.

    Speed=1.2 km130 hours\text{Speed} = \frac{1.2 \text{ km}}{\frac{1}{30} \text{ hours}} Speed=1.2×30 km/h\text{Speed} = 1.2 \times 30 \text{ km/h} Speed=36 km/h\text{Speed} = 36 \text{ km/h}

    The speed of the car is 36 km/h\boxed{36 \text{ km/h}}.

    b) The distance it would cover in 2 hours.

  4. Use the calculated speed and the new time to find the distance.

    Given time =2 hours= 2 \text{ hours}.

    Distance=Speed×Time\text{Distance} = \text{Speed} \times \text{Time} Distance=36 km/h×2 hours\text{Distance} = 36 \text{ km/h} \times 2 \text{ hours} Distance=72 km\text{Distance} = 72 \text{ km}

    The distance the car would cover in 2 hours is 72 km\boxed{72 \text{ km}}.


    Remaining : Another car's speed and distance

    a) The speed of the car in m/s.

  5. Convert the distance from kilometers to meters.

    Given distance =180 km= 180 \text{ km}.
    Since 1 km=1000 m1 \text{ km} = 1000 \text{ m}:

    180 km=180×1000 m=180000 m180 \text{ km} = 180 \times 1000 \text{ m} = 180000 \text{ m}
  6. Convert the time from hours to seconds.

    Given time =2 hours= 2 \text{ hours}.
    Since 1 hour=3600 seconds1 \text{ hour} = 3600 \text{ seconds}:

    2 hours=2×3600 seconds=7200 seconds2 \text{ hours} = 2 \times 3600 \text{ seconds} = 7200 \text{ seconds}
  7. Calculate the speed using the formula Speed=DistanceTime\text{Speed} = \frac{\text{Distance}}{\text{Time}}.

    Speed=180000 m7200 s\text{Speed} = \frac{180000 \text{ m}}{7200 \text{ s}} Speed=25 m/s\text{Speed} = 25 \text{ m/s}

    The speed of the car is 25 m/s\boxed{25 \text{ m/s}}.

    b) The distance it would cover in 5 minutes.

  8. Convert the time from minutes to seconds.

    Given time =5 minutes= 5 \text{ minutes}.
    Since 1 minute=60 seconds1 \text{ minute} = 60 \text{ seconds}:

    5 minutes=5×60 seconds=300 seconds5 \text{ minutes} = 5 \times 60 \text{ seconds} = 300 \text{ seconds}
  9. Use the calculated speed in m/s and the new time in seconds to find the distance.

    Distance=Speed×Time\text{Distance} = \text{Speed} \times \text{Time} Distance=25 m/s×300 s\text{Distance} = 25 \text{ m/s} \times 300 \text{ s} Distance=7500 m\text{Distance} = 7500 \text{ m}

    The distance the car would cover in 5 minutes is 7500 m\boxed{7500 \text{ m}}.

Was this helpful?

Still stuck on this one?

Ask a follow-up, and the answer starts from this question.

Got a different question?Ask your own question
Handwritten step-by-step solution preview

Handwritten Step-by-Step Solution

Get this as a handwritten image on WhatsApp — like a tutor wrote it for you.

Try on WhatsApp