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A bouquet of tulips costs $6.49 and a bouquet of costs assorted flowers costs $8.53. You have $15. Is front-end estimation a reliable method to determine if you can buy both book bouquet? Justify your answer.

 Aug 27, 2014

Best Answer 

 #1
avatar+118667 
+10

Hi Dragon,

6.49 is $6

8.53 is $9

6+9 is 15 which makes it seem like you MIGHT have enough money.  BUT the fact is you do not have enough money.

this is because on the $9 you have overestimated by 47c and on the $6 you have underestimated by 49c . On balance this is an underestimate of 49-47=2c (I mean the exact answer would be $15.02

The addition is too close.  The ESTIMATED cost  would have to be Less than the amount of money that you have.

----------------------

As an aside I would push everything up rather than rounding if I wanted a quick idea if I had enough money. ie $7+$9 = $16 umm maybe not enough money.

Is this the sort of answer that you wanted Dragon?

 Aug 27, 2014
 #1
avatar+118667 
+10
Best Answer

Hi Dragon,

6.49 is $6

8.53 is $9

6+9 is 15 which makes it seem like you MIGHT have enough money.  BUT the fact is you do not have enough money.

this is because on the $9 you have overestimated by 47c and on the $6 you have underestimated by 49c . On balance this is an underestimate of 49-47=2c (I mean the exact answer would be $15.02

The addition is too close.  The ESTIMATED cost  would have to be Less than the amount of money that you have.

----------------------

As an aside I would push everything up rather than rounding if I wanted a quick idea if I had enough money. ie $7+$9 = $16 umm maybe not enough money.

Is this the sort of answer that you wanted Dragon?

Melody Aug 27, 2014
 #2
avatar+8262 
0

I am sort of confused. 

 Aug 27, 2014
 #3
avatar+118667 
+5

Which bit is confusing Dragon?

 Aug 27, 2014
 #4
avatar+8262 
0

That if you need 2¢. Is it reliable?

Cab you solve my next post please?

 Aug 27, 2014
 #5
avatar+118667 
+5

It is not reliable you do not have enough money!

 Aug 27, 2014

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