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MA_775_DIABLO [31]
3 years ago
15

3/5 is no less than a number a.

Mathematics
1 answer:
Fittoniya [83]3 years ago
6 0

Step-by-step explanation:

What's A?

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The original cost of a necklace is $32. The jewelry store is having a sale and every item is 30% off. A 6.75% tax rate is charge
madam [21]

Answer:

Step-by-step explanation:

Original cost = $32

Discount = 30% of 32

=\frac{30}{100}*32\\\\=\frac{3*32}{10}\\\\=\frac{96}{10}\\\\=9.6\\

Selling price =  32 - 9.60 = $22.40

Tax = 6.75% of 22.40

=\frac{6.75}{100}*22.40\\\\= 1.512

= $ 1.51

Total cost with discount and tax = 22.40 - 1.51 = $ 20.89

5 0
3 years ago
What is the length of the altitude of the equilateral triangle below?
Mazyrski [523]

ANSWER

The length of the altitude is 3\sqrt{3} units


<u>EXPLANATION</u>

The altitude of a triangle is the vertical height of the triangle.


From the diagram the altitude is a


Method 1: We can use Pythagoras theorem to find a


6^2=a^2+3^2


6^2-3^2=a^2


36-9=a^2


27=a^2


We take the square root of both sides,

\sqrt{27}=a


\sqrt{9\times3}=a


\sqrt{9} \times \sqrt{3}=a


3\sqrt{3}=a


Method 2 Using Trigonometry

sin(60\degree)=\frac{a}{6}

6sin(60\degree)=a


a=6\times \frac{\sqrt{3}} {2}


a=3\sqrt{3}






6 0
3 years ago
Read 2 more answers
5x + 3y = 26<br> 6x+ 7y=21
kupik [55]

Answer:

x = -1

Step-by-step explanation:

5x + 3y = 26

- (6x + 7y = 21)

_________

-x - 4x = 5

-5x = 5

x = -1

7 0
1 year ago
PLEASE AWNSER PLEASE ​
Serhud [2]

The answer would be option M.: x-0.4x.

6 0
3 years ago
Solve the inequality below. Use the drop-down menus to describe the solution and its graph.
aniked [119]

Answer:

x < -4

Step-by-step explanation:

Hello!

I don't see the drop-down menus, but I will try to help as best as I can...

Like any other equation, you are trying to get x by itself.

Our first step will be to subtract 13 from both sides.

-7x + 13 > 41

-7x > 28

Now, we will need to divide -7 from both sides. But, remember, dividing or multiplying a negative number will switch, or flip, the sign.

-7x/-7 > 28/-7

Doing the above equation will provide us with x all alone on one side:

x < -4

Hope I helped!

-Mary :)

7 0
3 years ago
Read 2 more answers
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