If 6 lbs of fertilizer will cover 828 square feet of lawn, how many pounds would be needed to cover 1104 square feet?

Answer 1

Hello,

I like questions like these because they are helpful for teaching us about real world problems.

I'll give you a simple example that I hope will help you figure out how to do the more complicated one that you have.

I went to the store and bought 2 Buckets of Paint. I was able to paint 100 square feet of wall with them both. Now I want to paint another wall that is 250 square feet. How many buckets will I need for the second wall?

The trick to these problems is figuring out how much 1 bucket covers. Divide the total amount of the first wall painted by the two buckets that you used.

It should be (100 ft²) / (2 Buckets) = (50 ft²) / (1 Bucket) = 50 Square Feet per Bucket

So each bucket that I buy will be enough to cover 50 square feet.

Now I want to paint 250 square feet. I am going to divide the size of the second wall by the amount that 1 bucket can paint.

It should be (250 ft²) / (50 ft² / Bucket) = 5 Buckets

So I will need 5 buckets to finish my second wall.

From here I am sure you can figure the problem out with the fertilizer.

Remember, first find out how much 1 pound can cover. Then find out how many you are going to need for the whole lawn.

Good Luck,

Michael

Answer 2

x/1104 = 6/848

the ratio of pounds to square feet remains the same

x = 1104(6)/848 = about 7.81 pounds