SOLUTION: No one has answered any of my questions...please i really need help. I am 56 and cannot do this on my own. Will someone please come to the aid of an old lady? Thank you The len

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: No one has answered any of my questions...please i really need help. I am 56 and cannot do this on my own. Will someone please come to the aid of an old lady? Thank you The len      Log On

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Question 133914: No one has answered any of my questions...please i really need help. I am 56 and cannot do this on my own. Will someone please come to the aid of an old lady? Thank you
The length of a rectangle is fixed at 15 cm. What width will make the perimeter greater than 96 cm? The width must be greater than ? cm.
2. A reduced fat cookie contains 2g of fat per serving. In order for food to be termed "reduced fat", it must have at least 15% less fat than the regular item. What can you conclude about how much fat is in a serving of the regular cookie?
3. A certain kind of animal weighs about 73 lbs. at birth and gains about 2 lbs a day for the first few weeks. Determine those days for which the animals weight is more than 121 lbs. The animals weight is more than 121 lbs when the animal is more than ? days old.
4. Joe's electric made 15 customer calls last week and 22 calls this week. How many calls must be made next week in order to maintain an average of at least 20 calls for the three week period? At least ? calls must be made to maintain an average of 20 calls.
Please help me....

Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
OLD?? __ I'll be 60 this year; and I'm solving problems...

perimeter is twice the length plus twice the width
__ let x=width __ 2(15)+2x>96 __ 30+2x>96 __ 2x>66 __ x>33


2. 15% less means that the reduced fat cookie has 85% (100-15) of the fat of a regular cookie
__ let x=regular fat __ 85%(x)=2 __ .85x=2 __ x=2/.85


3. starting weight plus [weight per day times days] equals current weight
__ let x=days to pass 121 __ 73+2x>121 __ 2x>48 __ x>24


4. an average of 20 calls for the 3 weeks would mean a total of 60 (20*3) calls
__ let x=3rd week calls __ 15+22+x=60 __ 37+x=60 __ x=23