There are 1,61 kilometers in a mile or more correctly 1,60934 kilometers in a mile.
But first, a short history.... Both kilometers and miles are units of measurement. They are used to measure distance. Miles are part of the imperial measurement system and kilometers are part of the metric measurement system. 
To calculate how many miles a person will run during a 10-kilometer race, you need to divide 10 kilometers by 1,61 miles (1,60934 rounded up to two digits).

Therefore your equation is as follows:

10÷1,61 or 10 000 meters ÷ 1 610 metres
1000 meters is equal to 1 kilometer.

The answer = 6, 21 miles.

Therefore, a person who runs 10 kilometers will run 6,21 miles

6 0

3 years ago

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Given A(2,0) and B(8,4), show that P(3,5) is on the perpendicular bisector of line AB by these 2 methods

Shalnov [3]

1) First we need to find midpoint M of segment AB.

... M = (A+B)/2 = ((2+8)/2, (0+4)/2) = (5, 2)

Then vector AB is B-A = (8-2, 4-0) = (6, 4)

and vector PM is P-M = (3-5, 5-2) = (-2, 3)

The latter has slope that is 3/-2 = -3/2. The former has slope that is 4/6 = 2/3.

The product of these slopes is -1, indicating these vectors are perpendicular.

2) Vector PA is P-A = (3-2, 5-0) = (1, 5).

Vector PB is P-B = (3-8, 5-4) = (-5, 1).

The lengths of both of these vectors are √(1²+5²) = √26.

7 0

4 years ago

The IQ test is designed such that the scores on it are normally distributed with a mean of 100 and a standard deviation of 15. I

kozerog [31]

Answer:

130

Step-by-step explanation:

A standard deviation is 15, so 2 standard deviation is 30, 2 standard deviations above 100 is 100+30=130

5 0

3 years ago