6/10 = 0.6
0.6 × 100 = 60
Answer = B.60
~Aamira~
~Hope this helped~
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Uw=2
w=2/U
ux=y
x=y/u
wx=(2/U)(y/u)
wx=(2y)/(Uu)
One scale factor equation is y=cx
y is the new factor (in this case, 60 or 75)
c is the scale factor (in this case, unknown)
x is the old factor (in this case, 24 or 30)
so: plug in the values
60=c(24) divide both sides by 24
c=2.5
you can check again with the other numbers
75=c(30) divide both sides by 30.
c= 2.5
your scale factor is 2.5