3 years ago

Five added to a number gives the sum of 39. what is the unknown number?

Mathematics

1 answer:

gregori [183]3 years ago

6 0

Answer:

The unknown number is 34.

Step-by-step explanation:

x+5=39

x=39-5

x=34

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Simora [160]

Answer:

all of it. because he ate 3/4 and she ate 1/4

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A cone has a radius of 6 inches and a height of 10 inches.

Mariulka [41]

The volume of a cone:
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r - the radius
h - the height

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The answer is B. 120π in³.

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True or false: a. ln56/ln7 = ln8 b. ln(x+y)-ln(x+y)=0

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3 years ago

The difference between two integers is 32.The ratio of these integers is 1:3.Find these integers

shutvik [7]

Answer:

16 and 48

Step-by-step explanation:

let the 2 integers be x and 3x ← ratio 1 : 3

Then

3x - x = 32 ← difference between the integers

2x = 32 ( divide both sides by 2 )

x = 16

and 3x = 3 × 16 = 48

Since magnitude of difference is 32

We can also express the difference as

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F(x)= <br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4x%20-%207%7D%7B10%7D%20" id="TexFormula1" title=" \frac{4x - 7}{10} "

Naily [24]

Answer:

To find f-¹(x) of f(x) equate f(x) to y

That's

f(x) = y

So we have

$y = \frac{4x - 7}{10}$

Next interchange the variables that's x becomes y and y becomes x

That's

$x = \frac{4y - 7}{10}$

Next make y the subject

Cross multiply

We have

4y - 7 = 10x

Move -7 to the right side of the equation

4y = 10x + 7

Divide both sides by 4

We have the final answer as

$y = \frac{10x + 7}{4}$

$f ^{ - 1} (x) = \frac{10x + 7}{4}$

Hope this helps you

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3 years ago