A jogger runs 3km in 0.3hr, then 7km in 0.70hr what is the average speed of the jogger

10 km/hr

Explanation:

We are told that a jogger runs;

3km in 0.3 hr and

7 km in 0.7 hr

We are required to determine the average speed;

We need to know that average speed is given by;

Average speed = Total distance ÷ total time

In this case;

Total distance = 10 km ( 3km + 7 km)

Total time = 0.3 hr + 0.7 hr

                = 1 hr

Thus;

Average speed = 10 km ÷ 1 hr

                          = 10 km/hr

Therefore, the average speed of the jogger is 10 km/hr

at the bottom

explanation:

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).