Question

Nancy wants to put a birdseed mix in her birdfeeder. The mix is 20% wild bird seed and 80% sunflower seed. Her birdfeeder can hold 8 cups of birdseed. How much wild bird seed does she need to fill the birdfeeder?
I really need help with this question plzz someone help

Answer 1

The total number of cups is 8.

We know that 20% is wild birdseed, this means:
$8 \cdot \frac{20}{100} = 1.6$ cups of wild birdseed

and

$8 \cdot \frac{80}{100} = 6.4$ cups of sunflower seeds

In total she will put 1.6 + 6.4 = 8 cups of birdseed mix