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3 years ago

!!ASAP!! Please help marking brainliest w/ points!!

Mathematics

1 answer:

blondinia [14]3 years ago

5 0

Answer:

1. yes

2. no

3. yes

4. yes

5. no

Step-by-step explanation:

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The sum of one–half a number and two-thirds the number is equal to twenty-five less than twice the number.

Savatey [412]

Answer: $\frac{1}{2}$ x + $\frac{2}{3}$ x = 2x - 25

Step-by-step explanation:

First, let's analyze the phrase "the sum of one-half and two-thirds the number". This would translate to:

$\frac{1}{2}$ x + $\frac{2}{3}$ x

Then it says the last part of the expression is "twenty five less than twice the number"

2x - 25

Then, equal the two parts of the equation to each other.

$\frac{1}{2}$ x + $\frac{2}{3}$ x = 2x - 25

Hope this helps! :)

4 0

2 years ago

Artist heard that as a general rule

zhenek [66]

What does this mean idk but thanks for the free answer

6 0

3 years ago

Find dx/dt when y=2 and dy/dt=1, given that x^4=8y^5-240<br><br> dx/dt=

katrin2010 [14]

Answer:

The value of $\frac{dx}{dt}$ is $\frac{160}{x^3}$ .

Step-by-step explanation:

The given equation is

$x^4=8y^5-240$

We need to find the value of $\frac{dx}{dt}$ .

Differentiate with respect to t.

$4x^3\frac{dx}{dt}=8(5y^4)\frac{dy}{dt}-0$ $[\because \frac{d}{dx}x^n=nx^{n-1},\frac{d}{dx}C=0]$

$4x^3\frac{dx}{dt}=40y^4\frac{dy}{dt}$

It is given that y=2 and dy/dt=1, substitute these values in the above equation.

$4x^3\frac{dx}{dt}=40(2)^4(1)$

$4x^3\frac{dx}{dt}=40(16)(1)$

$4x^3\frac{dx}{dt}=640$

Divide both sides by 4x³.

$\frac{dx}{dt}=\frac{640}{4x^3}$

$\frac{dx}{dt}=\frac{160}{x^3}$

Therefore the value of $\frac{dx}{dt}$ is $\frac{160}{x^3}$ .

4 0

3 years ago

1.55kg to a whole number

katrin2010 [14]

31/20, or turned into a mixed fraction, is 1 11/20kg. Hope this helps!

6 0

3 years ago

Read 2 more answers

Easy Question, Easy points

defon

Answer:

20,000 cm³

Step-by-step explanation:

The shape is a triangular prism

Base area × height

½ × 20 × 25 × 80

20,000 cm³

3 0

3 years ago

Read 2 more answers