Help please, mainly with part b

Mathematics

2 answers:

Delvig [45]3 years ago

7 0

Answer:

hope this answer helps you dear...take care and may u have a great day ahead!

tigry1 [53]3 years ago

4 0

Here is all you need for b)

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Anita purchased a couch that was priced at $700. She will also have to pay 6% sales tax. How much will she pay in total for the

Zolol [24]

Answer:

$742

Step-by-step explanation:

To solve this, you need to figure out what 6% of 700 dollars is and then add that to 700. The easiest way to find the percentage of a number is to set it up in the equation:

6/100 = x/700 where 6 is the percentage of 700 (out of 100 because you can only get up to 100 percent in this case) and x is 6 percent of 700. when you cross multiply, you get 100x = 4200. Then you divide both sides by 100 to get x by itself. This will give you x = 42 Add this to 700 for 742 as the total amount that will be paid. Sorry if this first half was a little confusing

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Can anyone helppp I’m not sure if my answer is correct!!

Brrunno [24]

Answer:

I would say D

Step-by-step explanation:

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PLEASE HELP WITH THIS I HAVE NO IDEA HOW TO SOLVE!!!!

VARVARA [1.3K]

Write the vertex form of the equation and find the necessary coefficient to make it work.
.. y = a*(x +3)^2 -2
.. = ax^2 +6ax +9a -2

You require the y-intercept to be 7. So, for x=0, you have
.. 9a -2 = 7
.. 9a = 9
.. a = 1

The equation you seek is
.. y = x^2 +6x +7

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Since he deposited 160 then took out 160 it did not change

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