<span>You need two number lines to compare two fractions when their denominators are different. The procedure is that you draw to segment lines of the same length but divede each line according to its denominator and then compare the place of the points that mark the fraction numbers, the line that content the marke further away from the start end will be indicate the greater fraction. For example, the fractions 3/4 and 7/10. One line will be divided inot 4 equidistant segments, and the other with 10 equidistant segments. The fraction 3/4 will be represented with 3 marks on the first line, and the fraction 7/10 will be represented with 7 marks on the second line. Now you can compare the size of the two segments marked adn decide which fraction is greater. </span>
The formula of the Simple Interest is: I=PRT P for Principle Amount ($1200) R for Rate (5%= = 0.05) T for Time in years (4 years) I = 1200 × 0.05 × 4 = $240
Add the interest to the principle amount to check the balance $1200 + $240 = $1440
Lets see! We need to use the pythagorean theorem (a^2+b^2=c^2) to check. So.. 15^2+ 17^2 = 19^2 225+ 289= 361 Hm 225 and 289 do NOT equal 361 therefore it is NOT a right triangle.