Final quetion on this website :D it's worth 30 points :) But there are 3 questions. Anwser them all completely please. I also give thanks and if you need help just pm me
enlarged by a scale factor of 10/1 or basically he made the legnth and the width 10 times bigger 4 times 10=40 6 times 10=60 new dimentions are 40 inches by 60 inches
2. A: normally we write ratios in (distance):(time) so marie=325:20 tamara=255:15 B. proportional means that if you conver to fraction and simplify, they will be equall so 325/20=16.25/ 255/15=17/1 they are not equal and therefor NOT proportional
3. so we use slope intercept form which is y=mx+b where m=slope and b=y-intercept so we find the equation slope=-4/3 we are given the point (0,16) the y-intercept is where x=0 in (x,y) form, (0,16), x=0 and y=16 b=16 y=-4/3x+16 the x intercept is where the line crosses the x axis or when y=0 so set y=0 so 0=-4/3x+16 subtract 16 from both sides -16=-4/3x multiply both sides by -1 because I don't like negatives 16=4/3x multiply both sides by 3 48=4x divide both sides by 4 12=x solution=(12,0)
it will cross at (12,0)
ANSWERS 1.40 inches by 60 inches 2. A.marie=325:20 tamara=255:15 B.They are NOT proportonal 3. the point (12,0)
