Question

Does the ratio's form a proportion?
25/35 and 35/45???!

Answer 1

They form a proportion if 25/35 = 35/45 is a true equation

Answer 2

One way to check to see if 25/35 = 35/45 is a true equation is to cross multiply

if you get both sides equal to the same number (after cross multiplication), then the original equation is true

Answer 3

can you solve the variable? z/5 = 6/30 ??

Answer 4

Example

1/2 = 3/6

1*6 = 2*3 ... cross multiply

6 = 6 ... this equation is true so 1/2 = 3/6 is true

Answer 5

to solve z/5 = 6/30, we can cross multiply to get

z*30 = 5*6

what's next?

Answer 6

another solve the variable

Answer 7

w/15 = 3/5

Answer 8

same idea, hopefully the last one made sense?

Answer 9

would the answer be 9?