Suppose heather has 7.81 pounds of seed. if it takes 7.1 pounds of seed to plant one acre of grass, how many acres of grass can be planted?

Set up a proportion:

7.81/x = 7.1/1

Cross multiply:

7.81 = 7.1x

Then divide 7.1 on both sides to isolate x:

1.1 = x

1.1 acres of grass can be planted.

At a constant it will take one hour to travel 32 mi.at that speed it will take 1/2 hr to travel the remaining 16 mi.it will take 1+1/2 hr to travel the 48mi @ 32mph.so 1 hr = 60 min& 1/2 hr = 30 min1+1/2 hr = 90 min.there are 60s in each 90 × 60 = 3600 seconds.the real question seriously is he why are they driving so slow? ! lol.