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3 years ago

15

While Patrick was visiting his sister in Summerfield, he bought a silver ring that was marked down 50% from an original price of

$40. If the sales tax in Summerfield is 5%, what was the total cost of the silver ring?

1 answer:

Bezzdna [24]3 years ago

7 0

21.47 I think???? Not sure

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How to find the solution for 3x-11=x+3 ?

Marina CMI [18]

Answer:

7

3 times ? - 11

=

? + 3

? = 7

Step-by-step explanation:

3 times 7 is 21 -11 is 10

7+3 is 10

Both equations has to make 10 so it is the answer of 7

Hope this helps :)

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3 years ago

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Evaluate yx^y - xy^x for x = 1/2 and y=4.<br><br> A: -3/4<br> B: -1/2<br> C: 1/4<br> D: 3/4

Natalka [10]

Answer:

b

Step-by-step explanation:

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3 years ago

The hypotenuse of a right triangle is 10cm long. One of the triangle's legs is three times the length of the other leg. Find the

vivado [14]

Answer:

The lengths of the three sides are 10 cm, 9.49 cm and 3.16 cm

Step-by-step explanation:

Let

c ------> the length of the hypotenuse of a right triangle

x -----> the length of one leg

y -----> the length of the other leg

we know that

$c^{2}=x^{2}+y^{2}$ -----> equation A (Pythagoras Theorem)

$c=10\ cm$ ----> equation B

$x=3y$ -----> equation C

Substitute equation B and equation C in equation A and solve for y

$10^{2}=(3y)^{2}+y^{2}$

$100=10y^{2}$

$y^{2}=10$

$y=\sqrt{10}\ cm$

$y=3.16\ cm$

Find the value of x

$x=3(\sqrt{10})=9.49\ cm$

therefore

The lengths of the three sides are 10 cm, 9.49 cm and 3.16 cm

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3 years ago

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5 - x - x = - 1<br>x = ?

IRISSAK [1]

5 - x - x = - 1
5 + -2x = - 1
-5 -5
-2x = -6
divided by 2 on both sides
x = 3

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4 years ago

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Solve for x: 2x+1= -3x+36

SSSSS [86.1K]

Answer:

x = 7

Step-by-step explanation:

2x + 1 = -3x + 36

2x + 3x + 1 = -3x + 3x +36

5x + 1 = 36

5x + 1 - 1 = 36 - 1

5x = 35

5x/5 = 35/5

x = 7

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4 years ago

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