Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

The first step to solve this problem is to:

1.   ?    Find the answer.
2.   ?    Write the equation.
3.   ?    Figure out what the numbers mean and assign variables to them.

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.

Which of the following is correct?

1.   ?    ΔD = ?
   ΔT = 15 sec
   S = 200 m/s
2.   ?    ΔD = ?
   ΔT = 200 m/s
   S = 15 sec
3.   ?    ΔD = ?
   ΔT = 200 m/s
   S = 2 hours
4.   ?    ΔD = 200 m/s
   ΔT = ?
   S = 15 sec

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2 is?

1.   ?    Solve for speed
2.   ?    Solve for Distance
3.   ?    Write the formula for speed.
4.   ?    Write the formula for distance

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula

The formula you need is:

1.   ?    a = ΔS/ΔT
2.   ?    S = ΔD(ΔT)
3.   ?    S = ΔD/ΔT
4.   ?    S = ΔT/ΔD

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula
S = ΔD/ΔT

Step 3:

When you are asked to calculate speed, the next step would be to put in the numbers. For this problem, though, you are asked to calculate distance. So what do you need to do next?

1.   ?    Solve for ΔD
2.   ?    Give the answer
3.   ?    Find a different equation.
4.   ?    Solve for ΔT.

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula
S = ΔD/ΔT

Step 3: Solve for the unknown: solve for ΔD.

Which is correct?

1.   ?    ΔD = ΔTS
2.   ?    ΔD = ΔT/S
3.   ?    ΔD = S/ΔT
4.   ?    ΔD = ΔT + S

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula
S = ΔD/ΔT

Step 3: Solve for the unknown: solve for ΔD.
ΔD = ΔTS

Step 4: Put in numbers

Which of the following is correct?

1.   ?    ΔD = (15 sec)(200 m/s)
2.   ?    (15 sec) = (ΔT)(200 m/s)
3.   ?    ΔD = (15 sec)/(200 m/s)
4.   ?    (200 m/s) = (15 sec)(s)

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula
S = ΔD/ΔT

Step 3: Solve for the unknown: solve for ΔD.
ΔD = ΔTS

Step 4: Put in numbers
ΔD = (15 sec)(200 m/s)

Step 5 is?

1.   ?    Assign variables
2.   ?    Find the right formula
3.   ?    Stick in the numbers
4.   ?    Calculate the answer

Problem: A bus drives 200 m/s for 15 seconds. Calculate how far the bus travels.

Step 1: assign variables.
ΔD = ?
ΔT = 15 sec
S = 200 m/s

Step 2: Formula
S = ΔD/ΔT

Step 3: Solve for the unknown: solve for ΔD.
ΔD = ΔTS

Step 4: Put in numbers
ΔD = (15 sec)(200 m/s)

Step 5: Calculate the answer.

The answer is:

1.   ?    ΔD = 3,000 m
2.   ?    ΔD = 215 m
3.   ?    ΔD = 3,000 m/s
4.   ?    ΔD = 300 miles