Question

a. a marble rolls for 6 cm in 2 seconds. calculate the speed.
i’m solving for
speed
distance
time\tformula\tshow the numbers in the formula\tanswer\tunits

b. a bird flies at a speed of 2 km per hour for 3 hours. what distance did the bird fly?
i’m solving for
speed
distance
time\tformula\tshow the numbers in the formula\tanswer\tunits

c. a car travels 300 km at a speed of 100 km/hr. how much time did it take for the car to complete the trip?
i’m solving for
speed
distance
time\tformula\tshow the numbers in the formula\tanswer\tunits

Explanation:

Part A

Step1: Recall speed formula

The formula for speed is \( \text{Speed} = \frac{\text{Distance}}{\text{Time}} \)

Step2: Substitute values

Distance \( = 6 \, \text{cm} \), Time \( = 2 \, \text{seconds} \), so \( \text{Speed} = \frac{6}{2} \)

Step3: Calculate

\( \frac{6}{2}= 3 \)

Step1: Recall distance formula

The formula for distance is \( \text{Distance} = \text{Speed} \times \text{Time} \)

Step2: Substitute values

Speed \( = 2 \, \text{km/h} \), Time \( = 3 \, \text{hours} \), so \( \text{Distance} = 2\times3 \)

Step3: Calculate

\( 2\times3 = 6 \)

Step1: Recall time formula

The formula for time is \( \text{Time} = \frac{\text{Distance}}{\text{Speed}} \)

Step2: Substitute values

Distance \( = 300 \, \text{km} \), Speed \( = 100 \, \text{km/h} \), so \( \text{Time} = \frac{300}{100} \)

Step3: Calculate

\( \frac{300}{100}= 3 \)

Answer:

I'm solving for	Formula	Show the numbers in the formula	Answer	Units

Part B