Jazzy T.

asked • 01/14/15

Variety of Word Problems PLEASE HELP ASAP!

 I REALLY NEED HELP ON THESE! I DONT UNDERSTAND EACH ONE AT ALL! PLEASE TAKE ME TO THE PROCESS OF ANSWERING IT AND GIVE THE FINAL ANSWER!
 
1) Use two regular 6-sided dice and a coin.
Spalding and his sister want cheeseburgers, but neither wants to get up and cook them. Thinking quickly, Spalding proposes that they flip a coin to determine who does the cooking. He says whoever gets heads does the cooking. His sister wants to roll two dice and add the numbers. She says whoever gets an even sum does the cooking. Spalding says that his sister's method is unfair. Which method is fairer to both? Which method would give Spalding a greater chance of winning? Experiment to find out. Explain your answer with a table of your results and in words.

2) Use a protractor.
The woodworking class is making clocks. If the radius of the circle on each clock face is 10 inches, approximately how much space should be between the hour marks? How much between the minute marks?

3) The women's fitness center offers a special daily walk-in rate of $7 per visit, or a yearly membership of $295. Make a graph that will most accurately and efficiently allow you to figure out which plan is a better deal for someone who works out ever fifth day, every third day, or once a week. Explain why you chose to make your graph as you did, and demonstrate that it gives you accurate answers.
(for this one, im just not sure what the best kind of way of showing the information is)

4) Griselda wants to buy an elephant, so she needs to get a loan. One bank offers loans at 19.5% interest per month. A second bank offers for 17.4% per month plus a one-time fee of 10% of the amount of the loan. A third bank charges no interest for the first two months, 1% for each of the second two months, and doubles the percentage of interest for each of the two months thereafter. If Griselda needs to borrow $60,000 and can pay $600 per month, which loan should she take? Estimate first, then check your answwer by calculating the total amounts Griselda would have to pay for each of the three loans.

Fartash Y.

answer to question number two:
 
a clock has 24 hour marks so the 10 inch radius circle has divided into 12 parts.so all we have to do is, find the circle's perimeter then divided by 12.
p=2Πr=2*3.14*10 inch=62.8 inch
space between hour marks=p/12=5.23 inch
space between minute marks=p/(60*12)=62.8/720=0.087 inch
 
 
 
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01/18/15

Fartash Y.

i made a mistake in the second question.a clock has 12 hour marks not 24.
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01/18/15

Fartash Y.

answer to the question number one
 
his sister's method is fairer to both because it's more complicated.now if they flip a coin Spalding has 50% chance of winning.if they roll two dices the probability(chance) will be calculated as below:
S=a set that includes all possible results={(1,1),.....,(6,6)}
Ns=number of all possible results=6*6=36
A=a set that includes all even sums={(1,1),(1,3),(1,5),(3,1),(3,3),(3,5),(5,3),(5,1),(5,5),(2,2),(2,4),(2,6),(4,2),(4,4),(4,6),(6,2),(6,4),(6,6)}
NA=number of times that A happens=18
probability(chance) of A=NA/NS=18/36=50%
as you can see the chances of both method are the same which means they both give him equal chance to win.but as i said earlier the dice method is fairer because it's more complicated.
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01/18/15

1 Expert Answer

By:

Edward H. answered • 09/15/24

Tutor
New to Wyzant

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