20x+5y=-15 solve for y

20x+5y = -15
Take the 20x to the other side to get.
5y = -20x -15
Then divide both sides by 5.
So y = -4x -3

I know someone else has answered with something else, but this is how I'd do it ;)

1. 5/82.95% is better than 7/8

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 )