Question

Simple Answer: A, B, C, or D?
The question is a attachment.

Answer 1

Help?
Question 2

Answer 2

flip them,
find the ratio of b/a first

Answer 3

a : b?

Answer 4

\(\large \frac{10}{21} = \frac{2a}{a+b}\)

Answer 5

flip them

Answer 6

\(\large \frac{21}{10} = \frac{a+b}{2a}\)

Answer 7

try to find b/a first

Answer 8

could it be a = 13 b = 8?

Answer 9

oh man this is harder than calculus...sorry it's been years since I've done this problem

Answer 10

\(\large \frac{21}{5} = \frac{a+b}{a} \)

\(\large \frac{21}{5} = 1 + \frac{b}{a} \)

\(\large \frac{21}{5} - 1 = \frac{b}{a} \)

Answer 11

simplify,
and flip it again to get a/b

Answer 12

@catkittycool321