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Firdavs [7]
3 years ago
13

A store offers a 30% discount on a coat that originally sold for $120. The coat still does not sell, so the store offers another

30% o the sale price. What is the difference between this price and the price of the coat had it been marked down 60% all at once?A. $5.80 B.$7.40C. C. $10.8 D. no difference; the resulting prices are the same
Mathematics
1 answer:
Romashka [77]3 years ago
7 0

Answer:

C

Step-by-step explanation:

120 *.3 = 36

120-36 = 84

84*.3 = 25.2

84-25.2= 59.8

120*.6 = 72

120-72 = 48

59.8-48 = 10.8 C

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At an archery competition, Jamie and Marshall's team tied Shawna and Wyatt's team for the top team score. Team scores are determ
strojnjashka [21]

Given:

Jamie and Marshall's team tied Shawna and Wyatt's team for the top team score.

Marshall scores 12 less than Jamie. Shawna scored twice as much as Marshall. Wyatt scored 4 less than Shawna.

To find:

The individual score of each person.

Solution:

Let x be the score of Jamie.

Marshall scores 12 less than Jamie.

Marshall score = x-12

Shawna scored twice as much as Marshall.

Shawna score = 2(x-12)

Wyatt scored 4 less than Shawna.

Wyatt score = 2(x-12)-4

Now,

Score of Jamie and Marshall's team =x+(x-12)

Score of Shawna and Wyatt's team =2(x-12)+2(x-12)-4

Jamie and Marshall's team tied Shawna and Wyatt's team

x+(x-12)=2(x-12)+2(x-12)-4

x+x-12=2x-24+2x-24-4

2x-12=4x-52

Isolate x.

2x-4x=-52+12

-2x=-40

Divide both sides by -2.

x=\dfrac{-40}{-2}

x=20

So, Jamie score = 20

Marshall score = 20-12

                        = 8

Shawna score = 2(20-12)

                        = 2(8)

                        = 16

Wyatt score = 2(20-12)-4

                     = 2(8)-4

                     = 16-4

                     = 12

Therefore, the scores of Jamie, Marshall, Shawna and Wyatt are 20, 8, 16 and 12 respectively.

7 0
3 years ago
Select the expression equal to
lys-0071 [83]

Answer:

5\sqrt{3}

Step-by-step explanation:

\sqrt{75}

There is a perfect square of 25, so we remove it.

=\sqrt{25\times3}

Split the radical sign for both radicand.

=\sqrt{25}\times \sqrt{3}

Simplify the perfect square;

5\sqrt{3}

6 0
3 years ago
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Find the equation of the line that is perpendicular to y. Help plz
damaskus [11]

Answer:

8/9

Step-by-step explanation:

5 0
2 years ago
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If Anna's test grades are 66, 90, and 99, what is her test average?
marysya [2.9K]

Answer:

90 because it is the mean

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I believe the answer would be X=7
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