Question

ricardo knew what object has the largest mass in the solar system?
a. the moon
b. the earth
c. jupiter
d. the sun

1. jordan walked 2km in half an hour. what was her average speed during

a. 2 kmh
b. 0.5 kmh
c. 1 kmh
d. 4 kmh

Explanation:

Step1: Recall the formula for average speed

The formula for average speed \(v\) is \(v=\frac{d}{t}\), where \(d\) is the distance and \(t\) is the time.

Step2: Identify the values of \(d\) and \(t\)

Given \(d = 2\space km\) and \(t=0.5\space h\) (since half - an - hour is \(0.5\) hours).

Step3: Substitute the values into the formula

\(v=\frac{2}{0.5}\)
\(v = 4\space km/h\)

Answer:

d. 4 kmh