Question

The table shows the heights that four people parachute from an airplane. What is the range of the heights? Write your answer as a decimal or fraction in simplest form.

Answer 1

The answer is 1.55

Explanation:

The he first step to find the range is to make all the values either fractions or decimal/integer numbers. Below I show the process to make all the numbers decimals/integers

Height in miles

2.75: This number is decimal because of this it does not have to be modified

$2$ $\frac{2}{3}$: This number includes a rational number and a fraction to make this just one number write the first number as a fraction, multiply, and then divide the top number by the low number (denominator).

$\frac{2}{1}$ ×$\frac{2}{3}$ = $\frac{4}{3} = 1.333$

$\frac{49}{20}$ : This number is a fraction to simplify it divide the nominator by the denominator:

$\frac{49}{20}$$= 2.45$

$2 \frac{3}{5}$: Write the integer as a fraction and then simplify

$\frac{2}{1}$ ×$\frac{3}{5} = \frac{6}{5} = 1.2$

Now, from these values, the higher one is 2.75 and the lowest is 1.2, to find the range find the difference between these two numbers 2.75 - 1.2 = 1.55