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Anna35 [415]
4 years ago
9

The sale price of an item is 0.75 the original price of the item, x. Which statement explains why both 34x and 0.75x can find th

e sale price of the item?
A Multiplying by 43 is the same as multiplying by 0.8.

B The expressions are not equivalent.

C The fraction 34 is the same as the decimal 0.25. Therefore, 34x can be written as 0.25x.

D Multiplying by 34 is the same as multiplying by 75%.
Mathematics
2 answers:
defon4 years ago
8 0

Answer:

B

Step-by-step explanation:

34x and 0.75x are not the same expression.

Zinaida [17]4 years ago
6 0

Answer:

D Multiplying by 3/4 is the same as multiplying by 75%.

Step-by-step explanation:

Lets look at the fraction 3/4.  Multiply by 25/25

3/4 * 25/25 = 75/100

Now we need to change it to a decimal

75/100 = .75

3/4 and .75 are the same.

75 % means out of 100

75 % = 75/100

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Answer:

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Step-by-step explanation:

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3 0
3 years ago
What is the perimeter of the triangle? Round to the nearest tenth.
Cerrena [4.2K]

Answer: 19.8 Units

Step-by-step explanation:

The triangle is shown in the attached figure, and have three vertices: AB, AC and BC.

Each vertice represents a point in the cartesian plane and the length of each side of the triangle is the modulus of each vector.

In this sense, the modulus m is calculated as shown:

m=\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}

Hence, for each vector:

AB=\sqrt{(-2-3)^{2} + (3-0)^{2}}=\sqrt{34}

AC=\sqrt{(-2-(4))^{2} + (3-(-3))^{2}}=\sqrt{40}

BC=\sqrt{(-4-3)^{2} + (-3-0)^{2}}=\sqrt{58}

Now, the perimeter of a triangle is the sum of its three sides:

AB+AC+BC=\sqrt{34} + \sqrt{40} + \sqrt{58}

Finally:

AB+AC+BC=19.77 \approx 19.8

6 0
3 years ago
A=1/2 bh for b i need help
qwelly [4]
You said that                      <u>  A = 1/2 b h</u>

Multiply each side by 2 :    2A  =  b h

Divide each side by 'h' :    <em>2A/h  =  b</em>
5 0
3 years ago
In ΔDEF, the measure of ∠F=90°, DE = 70 feet, and EF = 57 feet. Find the measure of ∠D to the nearest tenth of a degree.
kondor19780726 [428]

Answer:

  54.5°

Step-by-step explanation:

You know that in a right triangle, the sine of an angle is given by ...

  Sin = Opposite/Hypotenuse

  sin(D) = EF/ED = 57/70

The inverse sine function is used to find the angle:

  ∠D = arcsin(57/70)

  ∠D ≈ 54.5°

5 0
3 years ago
Find the perimeter of a rectangle length 6yd. 2ft width 4yd 18inches?
Talja [164]
67 feet or 22 yards 1 foot
3 0
2 years ago
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