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cupoosta [38]
3 years ago
14

How do I work out this equation?

Mathematics
1 answer:
Annette [7]3 years ago
4 0
a_{11}=2\cdot11^2+3\cdot11-2=2\cdot121+33-2=242+31=273
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Ms. Carr's Class Is Selling Magazines To Raise Money For A Field Trip. The Students In The Class Device They Wanted To Make 5.50
FinnZ [79.3K]

Here you are giving only the amount they want to raise (namely profit times number of magazines sold), and here you are also giving Money they want to raise... So clarifying, the money they want to raise, should include the money they will spend on buying the magazines (there is no statement saying they found them, or were given the magazines, so a cost should be involved) 

Now if they are only making the count of "Field trip costs X amount of money, and given we have to make a profit of $5.5, How many must we sell?" then the equation should be n=X/5.5 

Should the story be, how much money must they raise to have a profit of 5.5 on each magazine and still have enough for the field trip, then you have a different equation which varies only in adding the cost of each magazine, either case, M should be defined not as money they need to raise (cause here they will be short on their goal) but Money they must earn. And again, you should rewrite your equation to be: 

M=Amount they must raise 
C=Cost per magazine 
n=Number of magazines 
p=profit $5.5 per magazine 

C+p=M/n 

And rewriting the previous they should make: 

n(C+p)=M -----> n(C+5.5)=M <span>m/n = 5.50 </span>
<span>m/n x n = 5.50 x n //// multiply each side by n </span>

<span>m = 5.5n</span>
6 0
3 years ago
Read 2 more answers
The measure of an angle is 61°. What is the measure of its supplementary angle?​
MrMuchimi

Answer:

119°

Step-by-step explanation:

if sum of two angles=180,then they are supplementary.

61+x=180

x=180-61=119

5 0
3 years ago
3. A dish contains 100 candies. Juan removes candies from the dish each day and no
iVinArrow [24]

Answer:

11

Step-by-step explanation:

If i am correct n= the days so with the days adding up day 10 juan would have 55 of the 100 candies, day 11 he would have 66. The statement said at least 64, so it would have to be 64 or the closet amount to 64 but it cannot be lower than 64. So there for 66 is the closest to the given amount, and in order for juan to get 64 he would need to take candies out for 11 days.

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2 years ago
The circumference of a hula hoop is<br> 86π cm<br> What is the radius of the hula hoop?
kvv77 [185]
The answer is 43 because it is half of 86 which is the radius
8 0
3 years ago
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2. The sum of the measures of two angles is 180°. The difference between the
Solnce55 [7]
Wouldn’t it be 110???
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