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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

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 j class=
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 j class=
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 j class=

Verified Answer :

bellbell252

1) 4 10 : 6 (10) = 40:60 inches.
2) a. \(\frac{325}{20}\) : \(\frac{255}{15}\)    Now reduce
\(\frac{65}{4}\) : \(\frac{17}{1}\)   The ratios are not proportional.
3) [0, 16], [3, 12], [6, 8], [9, 4], [12, 0]
The answer is [12, 0]

apologiabiology
  1. 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)

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