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Daniel [21]
3 years ago
7

24=3(n-5) what does n equal​

Mathematics
2 answers:
suter [353]3 years ago
5 0
N=13 is the right answer
KIM [24]3 years ago
4 0

Answer:

The answer is n = 13

Step-by-step explanation:

1) Divide both sides by 3.

\frac{3}{24} = n - 5

2) Simplify 24/3 to 8.

8 = n - 5

3) Add 5 to both sides.

8 + 5  = n

4) Simplify 8 + 5 to 13.

13 = n

5) Switch sides.

n = 13

<u>Therefor</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>for</u><u> </u><u>this</u><u> </u><u>equation</u><u> </u><u>is</u><u> </u><u>n</u><u> </u><u>=</u><u> </u><u>13</u>.

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20% of what number is 18<br> Explain.
Sophie [7]
In this question, the thing that needs to be found is the number whose 20% would be 18. The information's required for getting to the solution are already provided in the question. based on those given information's, the answer can be deduced very easily.
Let us assume the unknown number to be = x
Then
(20/100) * x = 18
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x = 18 * 5
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so the unknown number in the question is 90. I hope the procedure is clear enough for you to understand.
8 0
3 years ago
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The curve with equation y=ax^2+bx has a gradient of 3 at the point (2,-2). Find the values of a and b.
Airida [17]

Answer:

a = 2, b = - 5

Step-by-step explanation:

Given

y = ax² + bx

\frac{dy}{dx} is the measure of the slope at x = a

Differentiate each term with respect to x using the power rule

\frac{d}{dx}(ax^{n} ) = nax^{n-1}

\frac{dy}{dx} = 2ax + b, hence

2ax + b = 3 at (2, - 2)

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4a + b = 3 → (1) and substitute x = 2 into y

4a + 2b = - 2 → (2)

Subtract ( 1) from (2)

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Substitute b = - 5 into (1)

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7 0
4 years ago
Find the value or measure below. Assume that lines that appear tangent to be tangent.​
Ahat [919]

Answer:

x = 11.2

Step-by-step explanation:

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using the Pythagorean theorem:

x² = 14² - 8.4² = 196 - 70.56 =125.44

x = √125.44 = 11.2

5 0
3 years ago
Simplify the expression: w2 + 7w2 + 8w - 5 + 9 - 2w2
ololo11 [35]
<h3>6w^2 +8w +4 is the simplified expression</h3>

<em><u>Solution:</u></em>

Given that,

We have to simplify

w^2 + 7w^2 + 8w -5+9-2w^2

We can simplify the above expression by combining the like terms

Like terms are terms that has same variable with same exponent and same or different coefficient

From given,

w^2 + 7w^2 + 8w -5+9-2w^2

Group the like terms

w^2 + 7w^2 -2w^2 + 8w - 5+9\\\\Combine\ the\ like\ terms\\\\6w^2 +8w -5+9\\\\Combine\ the\ constants\\\\6w^2 +8w +4

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Step-by-step explanation:

3 0
3 years ago
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