Can anyone help me??

Mathematics

1 answer:

Tasya [4]4 years ago

5 0

Your in luck! I was just learning these percent things today 'xD but Not in luck at the same time. I will answer the 2 questions that's the most I can do.

1. $17.50 with a 7% sales tax

Answer: 17.50 times .07 equals 1.23

17.50 plus 1.23 equals 18.73

The answer is $18.73

2. 21.95 with a 4.25% sales tax

Answer: 21.95+4.25=26.20

Hope this helps!! :D this took me a while to figure out and used a bit of my time. So I hope the time was worth it! :)

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The profit of a cell-phone manufacturer is found by the function y = -2x^2 + 108x + 75 , where x is the cost of the cell phone.

vodomira [7]

Maximum price is 1

Put 1 in equation

$\\ \rm\hookrightarrow y=-2(1)^2+108(1)+75$

$\\ \rm\hookrightarrow y=-2+183$

$\\ \rm\hookrightarrow y=181$

3 0

2 years ago

Allan has a piece of string that is 5.4 meters in length. He needs some smaller pieces that are 0.6 meters in length. How many s

eduard

<h3>Option D</h3><h3>9 smaller pieces of string can be cut from Allan's string</h3>

<em><u>Solution:</u></em>

Given that,

Allan has a piece of string that is 5.4 meters in length

He needs some smaller pieces that are 0.6 meters in length

Therefore,

Total length of string = 5.4 meter

Length needed = 0.6 meter

Thus,

$\text{ Number of pieces } = \frac{ \text{ Total length of string }}{ \text{ Length needed }}\\\\\text{ Number of pieces } = \frac{5.4}{0.6}\\\\\text{ Number of pieces } = 9$