Posted by **Lilly** on Saturday, October 30, 2010 at 3:27pm.

Solve each proportion. Where necessary, round to the nearest tenth.

4/3 = b/21

I know b=28

do I round to the nearest tenth or what?

- math -
**Ms. Sue**, Saturday, October 30, 2010 at 3:35pm
28 is a whole number, so b = 28.

Your instructions say round where necessary. It's not necessary here.

- math -
**Bosnian**, Sunday, October 31, 2010 at 11:44am
(4/3)=(b/21) Multiply with 21

21*(4/3)=b

b=(21*4)/3

b=(84/3)

b=28

28=4*7

21=3*7

(28/21)=(4*7)/(3*7)=(4/3)

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