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Talja [164]
3 years ago
8

The computer store is having a sale on lets us each laptop is being sold for 15% off the regular price Avery wants to buy a lapt

op that is regularly $800 is a 5% sales tax is applied to the sales price of the lights up what is the final amount overpaid show your work
then right before checking out if you find a coupon on the stores website that will take an additional 10% off the sale price right before taxes added now what is the final price Avery will pay including tax show your work
Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0

Answer:

The answer is 600.

Step-by-step explanation:

This is because 5 percent of 800 is 40. 800+40 = 840. 15 percent of 800 is 160. 840 - 160 is 680. 10 percent of 800 is 80. 680 - 80 is 600.

If this is right an you mar me brainliest? Thank you and have a good day!

Stels [109]3 years ago
8 0

Answer:

1. $714

2. $612

Step-by-step explanation:

800. 15. 12000. 120

------ x ------ = ---------- = ------

1. 100. 100. 1

800 - 120 = 680

680 + 5% = 680+34 = 714

680. 10. 6800. 68

------ x ------ = ---------- = ------

1. 100. 100. 1

680-68 = 612

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2. Describe the means-extremes property.
GREYUIT [131]

Step-by-step explanation:

For example:

Ex: 2:3 :: 6:9

In this question, the means are 3 and 6.

The extremes are 2 and 9.

We use this method to find whether the two ratios are equal or not.

We multiply the means and the extremes, and if there products are same, then these two ratios are proportional.

If these two ratios are proportional, their "means" = "extremes"

=> Means = Extremes

=> 3 x 6 = 2 x 9

=> 18 = 18

So, these two ratios are proportional.

Hope this helps you.

8 0
4 years ago
Explain why multiplying two irrational numbers could result in either an irrational number or a rational number.
Nimfa-mama [501]
Because if you multiply 2 different irrational numbers (like the following)
\sqrt{3} \times  \sqrt{17}
You will get an irrational answer.

BUT
if you multiply the same square root (which are both irrational, you get a rational number)

\sqrt{3}  \times  \sqrt{3}  = 3
7 0
3 years ago
Find the area of a plane figure bounded by lines
natulia [17]

Answer: 4.5

<u>Step-by-step explanation:</u>

First, find the points of intersection by solving the system.

y = x² + 2x + 4

y = x + 6

Solve by substitution:

x² + 2x + 4 = x + 6   ⇒   x² + x - 2 = 0   ⇒   (x + 2)(x - 1) = 0   ⇒   x = -2, x = 1

Now, integrate from x = -2 to x = 1

\int\limits^1_2 {(x+6)-(x^{2}+2x+4) } \,    <em>the bottom of the integral is -2 </em>

= \int\limits^1_2 {x+6-x^{2}-2x-4 } \,

= \int\limits^1_2 {-x^{2}-x+2 } \,  

= \frac{-x^{3}}{3} - \frac{x^{2}}{2}+2x\int\limits^1_2 {} \,

= (\frac{-1^{3}}{3} - \frac{1^{2}}{2}+2(1)) - (\frac{-(-2)^{3}}{3} - \frac{(-2)^{2}}{2}+2(-2))

= (\frac{-1}{3} - \frac{1}{2} +2) - (\frac{8}{3} -\frac{4}{2} -4)

= \frac{-9}{3} + \frac{3}{2} +6

= -3 + 1.5 + 6

= 4.5


3 0
3 years ago
i need help with this if you help me i will mark you as brainliest if its right please dont put the answer in a file
STatiana [176]

Answer:

more than 7

Step-by-step explanation:

4+3 = 7

)sorry if i was wrong(

5 0
3 years ago
Read 2 more answers
3252614683754629158741032465x93756356872264881+432757232878247-3243566=
Paul [167]

Answer:

bout 7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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