For every 20 cakes ordered from Barry's Bakery, 8 cakes ordered are chocolate. Which proportion can be used to determine x, the total number of cakes ordered from the bakery when 30 chocolate cakes have been ordered?

A. 8/12 = x/30
B. 8/20 = x/30
C. x/8 = 30/20
D. 8/20 = 30/x

8 answers

I'll be glad to check your answer.
(8/20) x = 30

x = 600/8 = 75
The answer is B?

8*30 = 20*x
240 = 20x
240/20 = x
12 = x

x=12

correct?
Nope. Please read the question again.

Damon's answer is correct.
oh oh i see it now, i thought that 30 in all and how many are there in chocolate cake, i messed up the question. the answer should be D, right?
Right. D.
thank you ^.^
You're welcome. :-)