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3 years ago

What equation is described below?

Mathematics

2 answers:

Keith_Richards [23]3 years ago

4 0

Answer: 4×15= 60

Step-by-step explanation:

60 is 15 times as many as 4. This means that 15 is multiplied by 4 to get 60. This will be :

4×15= 60.

The other options such as 60÷15=4, 15+4= 60, 60÷4=15 and 60-15= 4 doesn't explain the question given. 60-15 is not 4 likewise 15+4 isn't 60. For the other options, the question isn't talking about division but multiplication.

Ray Of Light [21]3 years ago

3 0

Answer:

4x15=60

Step-by-step explanation:

We have to write an equation from the expression:

"60 is 15 times as many as 4"

This expression is the same as:

"15 times 4 is 60"

Now, from this expression, we can make the equation just using the values, and knowing that "times" means a multiplication between the numbers and "is" means a symbol of equality: "=". Then, we have that the equation is:

15x4=60

4x15=60

So the correct answer is the first option.

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What is the average rate of change of the function f(x)=2(3)x from x = 2 to x = 4?

Dvinal [7]

this is kinda easy and im gonna assume that the 4 is a exponent cuz f(2)=2(3)^4 then f=81

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4 years ago

a box with a square base and open top must have a volume of 70304 c m 3 cm3 . we wish to find the dimensions of the box that min

Dmitriy789 [7]

The box should have base 52 cm by 52 cm and height 26 cm.

What is volume?

A three-dimensional space's occupied volume is measured. It is frequently expressed as a numerical value using SI-derived units, other imperial units, or US customary units. Volume definition and length definition are connected.

The Volume of a box with a square base x by x cm and height h cm is

$V = x^2h$

Since the surface area directly affects the amount of material used, we can reduce the amount of material by reducing the surface area.

The surface area of the box described is $A = x^2 + 4xh$

We need A as a function of x alone, so we'll use the fact that

$V = x^2h= 70304 cm^3$

⇒ $h = \frac{70304}{x^2}$

So, the area becomes,

$A = x^2+4x(\frac{70304}{x^2})\\ A = x^2 + \frac{281216}{x}$

We want to minimize A, so

$A' = 2x - \frac{281216}{x^2} =0\\\frac{2x^3-281216}{x^2}=0\\ {2x^3-281216} = 0\\x^3 - 140608=0\\x^3 = 140608\\x = 52$

The second derivative test verifies that A has a minimum at this critical number:

$A'' = 2+\frac{562432}{x^3}$ which is positive at x = 52.

Now,

$h = \frac{70304}{x^2}= \frac{70304}{(52)^2}=26$

Hence, The box should have base 52 cm by 52 cm and height 26 cm.

To know more about volume, click on the link

brainly.com/question/463363

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8 0

2 years ago

Giving brainliest Help please

Inga [223]

Answer: -11/12

I only know this because of a song my math teacher made. I don't have an explanation, good luck

4 0

3 years ago

Read 2 more answers

What 3 consecutive even numbers added together equal 42?Use the equation n+(n+2)+(n+4)

Neporo4naja [7]

Let us assume the first even number = n
The second consecutive even number = n + 2
The third consecutive even number = n + 4
The addition of the three consecutive even numbers is 42 and it is already given in the question. Based on the information's given in the question, the answer can be easily deduced.
Then, the equation can be written as
n + (n + 2) + (n + 4) = 42
3n + 6 = 42
3n = 42 - 6
3n = 36
n = 36/3
   = 12
So
The first even number = 12
The second consecutive even number = n + 2
   = 12 + 2
   = 14
The third consecutive even number = n + 4
   = 12 + 4
   = 16
So the three consecutive even numbers are 12, 14, 16.

6 0

3 years ago

How many solutions does the system of equations have 4x+2y=-8 2x+y=4 explain your answer

valina [46]

Answer:

x=-y/2

Step-by-step explanation:

1. The value of a variable that makes an equation true.

2. In chemistry, a solution is a homogeneous mixture composed of only one phase

7 0

4 years ago