Tarzan Swims a distance of 1.5 km at an average speed of 2.5 km/h, cycles 40 km in 1 and 1/2 and runs at an average speed of 9km/h for1 1/9h. find the average speed of all.

Average speed = 50.5/2.211 = 22.84 km/h

Step-by-step explanation:

First phase;

Tarzan Swims a distance of 1.5 km at an average speed of 2.5 km/h,

Time taken = 1.5/2.5 = 0.6 hour

Second phase;

cycles 40 km in 1 and 1/2 hours

Time taken = 1.5 hours

Third phase;

Runs at 9km/h for1 1/9h

Time taken = 1.111 hour

Average speed = total distance travelled/total time taken

Total distance travelled = 1.5+40+9= 50.5km

Total time taken = 0.6+1.5+1.111 = 2.211 hour

Average speed = 50.5/2.211 = 22.84 km/h

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )