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klemol [59]
3 years ago
15

Write 3 1/2% as a fraction

Mathematics
1 answer:
VashaNatasha [74]3 years ago
5 0
Hey!

3 1/2 = 3.5 = 35/100 = 7/200 (In simplest form).
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Question 5 (Essay Worth 5 points) Jessica purchased a DVD that was on sale for 12% off. The sales tax in her county is 3%. Let y
Vlad [161]

Answer:

<em>The expression for final cost of the DVD is  0.9064y</em>

Step-by-step explanation:

Jessica purchased a DVD that was on sale for 12% off.

If the original price of the DVD is  y , then the amount of discount on sale will be:  0.12y

So, the selling price of the DVD = (y-0.12y)= 0.88y

The sales tax in her county is 3%. So, the amount of sales tax on the selling price will be:  (0.88y\times 0.03)= 0.0264y

Thus, the expression for final cost of the DVD is:  (0.88y+0.0264y)= 0.9064y

4 0
3 years ago
Jesse sold cupcakes and cookies yesterday. Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Je
ale4655 [162]

Answer: 19 cupcakes and 37 cookies were sold.

Step-by-step explanation:

Let x represent the number of cupcakes that Jesse sold yesterday.

Let y represent the number of cookies that Jesse sold yesterday.

If he sold 56 cupcakes and cookies combined, it means that

x + y = 56

Each cupcake sold for $1.50 and each cookie sold for $0.25. At the end of the day, Jesse had sold $37.75 worth of cookies and cupcakes. This means that

1.5x + 0.25y = 37.75 - - - - - - - - - - -1

Substituting x = 56 - y into equation 1, it becomes

1.5(56 - y) + 0.25y = 37.75

84 - 1.5y + 0.25y = 37.75

- 1.5y + 0.25y = 37.75 - 84

- 1.25y = - 46.25

y = - 46.25/ - 1.25

y = 37

x = 56 - y = 56 - 37

x = 19

7 0
3 years ago
I NEED HELP WITH THIS
Taya2010 [7]

Answer:

B.

Step-by-step explanation:

You must first subtract 12 from 27, which marks out two answers. A, and D.

Then, if NAthan traveled 3 times as far s philip, then you would multiply by three. leaving you with the only option being,

B.

7 0
3 years ago
Read 2 more answers
DUPLICATE. WITH ATTACHMENTS
Inessa05 [86]
7.) Area of a square pyramid is given by A = s^2 + 2sl; where s is the side length of the base and l is the slant height.
Area of given pyramid = 4^2 + (2 x 4 x 7) = 16 + 56 = 72 ft^2

8.) Area of the given pyramid is the area of the hexagonal base plus the area of the six slant triangles.
Area of hexagonal base = (3sqrt(3))/2 x 10^2 = 150 x 1.732 = 259.8
Area of the 6 traingles = 6(1/2 x 10 x 13) = 6 x 65 = 390
Total surface area of the pyramid = 259.8 + 390 = 649.8 ≈ 650 m^2

9.) Using pythagoras rule, the slant height is sqrt(6^2 + 3.5^2) = sqrt(36 + 12.25) = sqrt(48.25) = 6.9 mm

10.) The surface area of a cone is given by πr^2 + πrl
Area = π x 6^2 + π x 6 x 20 = 36π + 120π = 490.1 cm^2

11.) l = sqrt(r^2 + h^2) = sqrt(11^2 + 16^2) = sqrt(121 + 256) = sqrt(377) = 19m
6 0
3 years ago
How is the volume of the prism calculated
lukranit [14]

V=B·H

V is volume

B is Base

H is height

3 0
3 years ago
Read 2 more answers
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