Suma a doua numere este 3,72. determina cele doua numere, stiind ca unul dintre ele este cu 0,6 mai mare decat 1 supra 3 din celaland

A+b= 3,72a= b/3 + 0,6b/3 + 0,6 + b = 3,72b/3+b= 3,72 - 0,6b/3+b= 3, 12b/3+ 3b/3= 3*3,12/3  ⇒ 4b/3= 9,36/34b= 9,36b= 9,36/4b= 2, 34a= 3,72- 2,34a= 1, 38

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )