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2 years ago

Today, everything in the store is on sale. The store offers a 20% discount.

Mathematics

1 answer:

nadezda [96]2 years ago

3 0

A) The regular price of a t-shirt is $18. What is the discount price?

$14.4

B) Which equation represents this problem?

a) y = 0.8x b) y = 0.2x c) y = 1.80x d) y = 1.20x

The answer would be B.

C) The discount price of a hat is $18. What is the regular price?

22.5

Hope it helped!! ^^ 

Note: if you need me to explain i Would be happy to do so! :)

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luda_lava [24]

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144

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2 years ago

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lubasha [3.4K]

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3 years ago

A quadrilateral WXYZ has vertices W(3, −5), X(1, −3), Y(−1, −5), and Z(1,−7). What are the vertices of r(90, O)(WXYZ)?

VashaNatasha [74]

Given:

A quadrilateral WXYZ has vertices W(3, −5), X(1, −3), Y(−1, −5), and Z(1,−7).

Rule of rotation is $r_{(90^\circ, O)}(WXYZ)$ .

To find:

The vertices after rotation.

Solution:

We know that, $r_{(90^\circ, O)}(WXYZ)$ means 90 degrees counterclockwise rotation around the origin.

So, the rule of rotation is defined as

$(x,y)\to (-y,x)$

Using this rule, we get

$W(3,-5)\to W'(5,3)$

$X(1,-3)\to X'(3,1)$

$Y(-1,-5)\to Y'(5,-1)$

$Z(1,-7)\to Z'(7,1)$

Therefore, the required vertices after rotation are W'(5,3), X'(3,1),Y'(5,-1) and Z'(7,1).

8 0

3 years ago

What is 5% of $30,000

ValentinkaMS [17]

30000= 100%
x=5%
30000/x=100/5
(30000/x)*x=(100/5)*x
30000=20*x
30000/20=x
x=1500
5%of 30000 is 1500

7 0

3 years ago

Cuánto le falta a 1/4 para llegar a 4/5

german

Answer:

4/5 - 1/4

Step-by-step explanation:

4/5 =0.8

1/4=0.25

⇒0.8 - 0.25 = 0.55 (decimal form)

⇒4/5 - 1/4 = 11/20 (exact form-fraction)

6 0

2 years ago