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xz_007 [3.2K]
3 years ago
12

Write an expression for "n decreased by 3"

Mathematics
1 answer:
hichkok12 [17]3 years ago
5 0
N decreased by 3 is n-3
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Johanna's monthly salary was increased by 4% to $27,560. What was the salary before the increase?​
SOVA2 [1]

Answer:

$15,500

Step-by-step explanation: Trust

7 0
3 years ago
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The area of the following equilateral triangle is 62.4 square feet that is he height
Vikentia [17]

The height of this triangle would be 10.4

In order to find this, you first must find the length of the sides. Using a manipulated formula for area of an equilateral triangle, we can determine the lengths of the side. Below if the formula.

S = \frac{2}{3}3^{\frac{3}{4}} \sqrt{A}

In this, S is the length of the side and A is the area. So we plug in and get:

S = \frac{2}{3}3^{\frac{3}{4}} \sqrt{62.4}

S = \frac{2}{3}3^{\frac{3}{4}} 7.89

S = 12

Now that we have the side as 12, we can use the Pythagorean Theorem to find the height. If you split a equilateral triangle down the middle, you are left with two right triangles. Using this right triangle, the hypotenuse would be 12, the first leg would be 6 (half of the base) and the height would be the other leg. So we plug in and solve.

a^{2} + b^{2} = c^{2}

6^{2} + h^{2} = 12^{2}

36 + h^{2} = 144

h^{2} = 108

h = 10.4

5 0
2 years ago
PLS HELP ASAP I AM TIMED DON TGUESS EXPLAIN ANSWER
Scrat [10]
\sqrt[3]{\dfrac{x^3}{cy^4}}=\dfrac{x}{4y\sqrt[3]{y}}\\\\\\\dfrac{\sqrt[3]{x^3}}{\sqrt[3]{cy^3\cdot y}}=\dfrac{x}{4y\sqrt[3]{y}}\\\\\\\dfrac{x}{y\sqrt[3]{cy}}=\dfrac{x}{4y\sqrt[3]{y}}\\\\\\\sqrt[3]{cy}=4\sqrt[3]{y}\\\\\sqrt[3]{c}\sqrt[3]{y}=4\sqrt[3]{y}\\\\\sqrt[3]{c}=4\qquad|(\ldots)^3\\\\c=4^3\\\\\boxed{c=64}

Answer D.
3 0
3 years ago
Read 2 more answers
Which inequality represents the sentence? The difference of seven and two tenths and a number is more than twenty nine. 7. 2 - n
Slav-nsk [51]

The inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is

7.2-n > 29

<h3>What is the inequality equation?</h3>

Inequality equation is the equation in which the two expressions are compared with greater than, less than or other inequality signs.

Inequality is represented with the greater then(<), less then(>) or with the other inequity signs like less than equal to \leq or greater than equal to \geq.

Tenth is written as the fractional part of the number 10. The value of one tenth is equal to 1/10 or 0.1.

The sentence given for the inequality expression is, that the differences of seven and two tenths, and a number is more than twenty-nine.

The number seven and two tenths can be written as,

7\dfrac{2}{10}

Suppose the unknown number is n.  Now, the differences of seven and two tenths, and this number (<em>n</em>) is more than twenty-nine.  The more than word means, the greater than sign for equation. Thus, it can be expressed as,

7\dfrac{2}{10}-n > 29\\\dfrac{72}{10}-n > 29\\7.2-n > 29

Hence, the inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is

7.2-n > 29

Learn more about the inequality equation here:

brainly.com/question/17724536

7 0
2 years ago
Simplify 3x + 2 (9-5) <br><br>please help....
viktelen [127]
3x+8 
i am pretty sure about that
3 0
3 years ago
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