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liubo4ka [24]
3 years ago
9

Original price of a sweater:19.50 discount:20 percent

Mathematics
1 answer:
dexar [7]3 years ago
6 0

Answer:

19.30

Step-by-step explanation:

if your finding the discounted price, you'd take 20% and turn it into .20 and then subtract 19.50 and .20

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Four times the difference of y and six
erastova [34]

Answer

4(y - 6)

Explanation

The difference of y and 6 can mathematically be represented as y - 6.

Therefore, four times the difference of y and six will be 4(y - 6).

8 0
1 year ago
The figures are similar. Find the area.
TEA [102]

Answer:

108

Step-by-step explanation:

cross multiply fractions:

12/72 = 18/x

x = 108

3 0
3 years ago
13. Find the surface area of each figure to the nearest tenth. Show your work.
stiv31 [10]
A. The figure is a triangular pyramid. You can findits surface area by adding up the area of the three faces of the triangle and the area of the base. A derived formula also is used where the SA is equal to 12 times the perimeter of base times the slant height, added to that is the area of the base. The area of the square base is s^2. Its perimeter is 4s.

SA of Pyramid = 12*P*l + s^2
SA of Pyramid = 12*4s*l + 16^2
SA of Pyramid = 12*4(16)*(17) + (16)^2
SA of Pyramid = 11,008 square inches

b.) The formula for the SA of a cone is: 

SA of cone = πr[r+√(h^2+r^2)]
SA of cone = π(3)[(3+√(8^2+3^2)]
SA of cone = 108.8 square inches
7 0
3 years ago
Read 2 more answers
Apply the distributive property to factor out the greatest common factor. 5 6 + 3 2 = 56+32=
Triss [41]

Answer:

8 (7 + 4) = 56 + 32

Step-by-step explanation:

Greatest common factor of  56 & 32 is 8

8 x 7 = 56

8 x 4 = 32

8 (7 + 4 )

5 0
3 years ago
Simplify 7 to the power of 8 x 7 to the power of 3 x 7 to the power of 4 divide 7 to the power of 9 x 7 to the power of 5
Lemur [1.5K]
You can get the app Air Math I have the app and it helps a lot
7 0
2 years ago
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