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3 years ago

3 hats cost a total of $18. Which equation describes the total cost. C, in terms of the number of hats, n?

Mathematics

1 answer:

prohojiy [21]3 years ago

4 0

Answer:

A. C= 3n

Step-by-step explanation:

N×3=18

N = 6

6 × 3 = 18

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Translating mathematical statements in English into logical expressions. info About Consider the following statements in English

arsen [322]

Answer:

See below

Step-by-step explanation:

(a) There is a number whose cube is equal to 2.

$\large \exists x \in \mathbb{R}\;|\;x^3=2$

(b) The square of every number is at least 0.

$\large \forall x\in \mathbb{R},\;x^2\geq 0$

(c) There is a number that is equal to its square.

$\large \exists x \in \mathbb{R}\;|\;x^2=x$

(d) Every number is less than or equal to its square.

$\large \forall x\in \mathbb{R},\;x\leq x^2$

(By the way, this last statement is not true when 0 < x < 1)

3 0

2 years ago

2^X = 17^X How do you solve that equation?

Kobotan [32]

For this case we must solve the following equation:

$2 ^ x = 17 ^ x$

For this, we follow the steps below:

We find the Neperian logarithm on both sides of the equation to remove the variable from the exponent

$ln (2 ^ x) = ln (17 ^ x)$

We use one of the logarithm properties to extract x from the exponent:

$xln (2) = xln (7)$

We subtract xln (7) on both sides of the equation:

$xln (2) -xln (7) = 0$

We take x common factor:

$x (ln (2) -ln (7)) = 0$

We divide between $(ln (2) -ln (7))$ on both sides of the equation, then:

$x = 0$

Answer:

$x = 0$

5 0

3 years ago

Solve the equation. 10x + 2 = 32 X = Solve for x.

KiRa [710]

Answer:

Step-by-step explanation:

10x = 30

x = 3

7 0

2 years ago

What is the value of the expression? [(1+5)⋅2−5]⋅2

liberstina [14]

USE PEMDAS ( parenthesis, exponents, multiplication, division, addition, subtraction)

[(1+5)⋅2−5]⋅2
[6⋅2−5]⋅2
[12−5]⋅2
7⋅2
14

The answer is: 14

8 0

3 years ago

Original price:$89.00;markdown:33%

Anuta_ua [19.1K]

The answer is $59.99 =)

7 0

3 years ago