Use cross products to determine which pair of ratios forms a proportion.
a.2/3=10/18
b.2/3=12/18
c.2/3=14/15
d.2/3=14/24

Question

Use cross products to determine which pair of ratios forms a proportion.
a.2/3=10/18
b.2/3=12/18
c.2/3=14/15
d.2/3=14/24

anonymous · Answer

we are going to have to cross multiply...do you know how to do that ?

anonymous · Answer

hello ??

anonymous · Answer

yeah.sorry i was trying to figure it out lol.but its hard.yes i know how to cross multiply.

anonymous · Answer

I will do the first one for you....
(a) 2/3 = 10/18 (cross multiply)
     (2)(18) = (3)(10)
      36 = 30 (incorrect)
this is not proportional because they do not equal.

anonymous · Answer

ohkay so.(2)(18)=(3)(12) 36=36.so this is the answer!(:

anonymous · Answer

yes....you got it. Answer B

anonymous · Answer

good job :)