Posted by CHANTELL on Tuesday, November 2, 2010 at 10:09am.
The volume of a rectangular slab of concrete needs to exceed 72 cu. ft. If the length is 12 feet and the width is 8 feet, how thick does the concrete slab need to be?
“Collin left the party one half hour before Gabriel. Terrence left an hour and a half later than Gabriel. Together the three of them stayed more than four hours. How long did they each stay at the party?”
Laura found $2.15 in quarters and nickels in the bottom of her purse. There were seven fewer quarters than nickels. How many nickels and quarters did she find?
company A:
cost = .35m + 55
company B:
cost = .4m + 50
solve
.4m+50 = .35m+55
.05m = 5
m = 5/.05 = .....
Please do not post a new problem as an appendix to a previous post.
Tutors will think it has been answered and might ignore the entire post
second Problem:
let the thickness be x ft
so 12(8)x ≥ 72
x ≥ 72/96
x ≥ 3/4 ft
You are more likely to get each answered if you post each question as an individual posting
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