The ratio of blue cards to green cards is 2 to 5. There are 8 blue cards. Complete the diagram and explain how you can find the number of green cards.

Question

asked Aug 3, 2020 120k views

2 Answers

Jeff Bootsholz · Answer 1 · 2020-08-07T21:58:35+0000

Answer:

$20\ green\ cards$

Explanation:

Let

x------> the number of blue cards

y-----> the number of green cards

we know that

(x)/(y)=(2)/(5)

isolate the variable y

y=(5)/(2)x -----> equation A

we have

$x=8\ blue\ cards$

substitute the value of x in the equation A to find the value of y

$y=(5)/(2)(8)=20\ green\ cards$