200 flying insects she catch for her project .
Step-by-step explanation:
We have , Heather had to collect insects for her biology project. She was able to collect 225 total insects. She collected 8 times as many insects that could fly as insects that couldn't fly. That means insects ratio of non-fly to fly is 1:8 .
There are a total of 225 insects , and for every one non fly insect there are 8 fly insects , Let x be the number of insects that can't fly so:
[tex]x + 8x = 225[/tex]
⇒ [tex]x + 8x = 225[/tex]
⇒ [tex]9x = 225[/tex]
⇒ [tex]\frac{9}{9}x = \frac{225}{9}[/tex]
⇒ [tex]x = \frac{225}{9}[/tex]
⇒ [tex]x = 25[/tex]
So , Number of fly insects = 8x = 8(25) = 200 . ∴ 200 flying insects she catch for her project .