Question

Making proportions

Answer 1

I know how to mentally solve proportions but don't know how to make them.

Answer 2

A recipe for chocolate chip cookies requires a half cup of sugar for a serving of 8 cookies. You need to make 30 cookies for your Math class and decide to use proportions to calculate how much sugar you need. Which of the following proportions is not set up correctly?

Answer 3

the fraction 0 point 5 over 8 equals the fraction x over 30

the fraction x over 30 equals the fraction 8 over 0 point 5

the fraction x over 30 equals the fraction 0 point 5 over 8

the fraction 8 over 0 point 5 equals the fraction 30 over x

Answer 4

I think A and D are right.. @jdoe0001

Answer 5

\(\bf \begin{array}{llll}
\textit{cookies}&\textit{sugar cups}\\
8&0.5\\
30&x
\end{array}\implies \cfrac{8}{30}=\cfrac{0.5}{x}\)

Answer 6

B?

Answer 7

hmmmm based on my setup.... hehe , none match...

Answer 8

lol

Answer 9

I'm sure now it's B

Answer 10

lemme iterate mine for possible combinations

Answer 11

so this one would be valid \(\bf \cfrac{8}{30}=\cfrac{0.5}{x}\implies \cfrac{8}{0.5}=\cfrac{30}{x}\implies \cfrac{x}{30}=\cfrac{0.5}{8}\)

Answer 12

ok....

Answer 13

so you're right, once we rule those combinations out, is B =)

Answer 14

it'syayy!!! thanks so much

Answer 15

yw