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
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. :-)
To determine the proportion that can be used to determine x, the total number of cakes ordered from the bakery when 30 chocolate cakes have been ordered, we need to understand the relationship between the total number of cakes ordered and the number of chocolate cakes ordered.
We are given that for every 20 cakes ordered, 8 of them are chocolate. Let's express this as a proportion:
Chocolate cakes ordered/Cakes ordered = 8/20
Now, we can use this proportion to determine x. We know that 30 chocolate cakes have been ordered, so let's substitute the values into the proportion:
30/X = 8/20
To solve for x, we need to cross-multiply and solve the equation:
20 * 30 = 8 * X
600 = 8X
Dividing both sides by 8, we get:
X = 75
Therefore, the correct proportion that can be used to determine x is:
B. 8/20 = x/30