You are making several purchases from the i. b. electric electronics store. you can buy from this store online or in a physical store. you have a coupon for 10% off that can only be used in the physical store and a $5.00 off coupon that can only be used online. the sales tax of 5% only applies to the physical store. shipping for the online store is a flat rate of $6.99. using the information below, which way would you save the most money?
be sure to include the following information in your response:
the steps you followed to complete your computations.
the choice you made regarding which way to purchase the items.
the total cost of your purchases.

Online store will save the most money

Step-by-step explanation:

Amount used in Physical store

Batteries    2packs      @$5.99     cost = $5.99*2=$11.98

Stereo        1 system     @$100      cost = $100*1=$100

CDs             3 CDs        @$7.95     cost = $ 23.85

Total cost= $11.98+$100+$23.85= $135.83

Applying the 10% off coupon = 90/100 * $135.83 =$ 122.25

Applying sale tax 5% = 105/100 * 122.25=$128.36

Amount  to spend when using physical store= $128.36

Now calculate for the online store

Batteries     2packs     @$4.99       cost= $4.99*2=$ 9.98

Stereo         1 system    @$90         cost= $ 90 *1= $90

CDs              3  CDs      @$8.95       cost = $8.95*3=$26.85

Total cost=$9.98+$90+$26.85=$126.83

Applying the 5% off coupon= 95/100*126.83=$120.49

Applying the sale tax, $6.99+$120.49=$127.48

Comparing the two ways,

Physical store= $128.36

Online store=$127.48

Online store will save the most money by ($128.36-$127.48)=0.88

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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