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3 years ago

Constant of proportionality in 3/5y=8x

Mathematics

1 answer:

insens350 [35]3 years ago

3 0

The answer is 7 hope i helps you

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"Please help! Using the table of range of values for each weight class, how can you express the Light weight class as an absolut

mr_godi [17]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.

The answer is A. Below is the solution:

w - 45 <= 5 and w - 45 <= -5
w <= 50 w<= 40
the the class is 40 - 50

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3 years ago

A stove costs $695 will be on sale next week for 20% off its regular price. What is the amount of savings

jonny [76]

Answer:

It would be 139$

Step-by-step explanation:

In order to find a percent of a value you first move the decimal place over 2 to the left or divide by 100(percentage is no longer there). In this case it would be .20. You multiply that with the total number(695) and the product is your answer.

3 0

3 years ago

Can please someone help me out and explain it step by step. Thank you

Anit [1.1K]

Answer: $x=7, \ y=-2$

Step-by-step explanation:

Given

Equations are $3x-y=23$ and $2x+3y=8$

take $3x-y=23$

$y=3x-23$

Put the value of y in another equation

$\Rightarrow 2x+3(3x-23)=8\\\Rightarrow 2x+9x-69=8\\\Rightarrow 11x=77\\\Rightarrow x=7$

Put the value of x in y

$y=3(7)-23=21-23=-2$

Hence, $x=7, \ y=-2$

7 0

3 years ago

Given the relationship x2 + 3y2 =12, with y > 0 and dx, dt = 2 units/min., find the value of dy, dt at the instant y = 1 unit

matrenka [14]

$\bf x^2+3y^2=12\implies \stackrel{chain~rule}{2x\cfrac{dx}{dt}}+3 \stackrel{chain~rule}{\left(2y\cfrac{dy}{dt}\right)}=0
\\\\\\
2x\cfrac{dx}{dt}+6y\cfrac{dy}{dt}=0
\implies 
6y\cfrac{dy}{dt}=-2x\cfrac{dx}{dt}\implies \cfrac{dy}{dt}=\cfrac{-2x\frac{dx}{dt}}{
6y\frac{dy}{dt}}
\\\\\\
\boxed{\cfrac{dy}{dt}=-\cfrac{x\frac{dx}{dt}}{3y}}\\\\
-------------------------------$

$\bf \textit{now, when y = 1, what is \underline{x}?}\qquad x^2+3y^2=12\implies x^2+3(1)^2=12
\\\\\\
x^2=9\implies x=\sqrt{9}\implies x=3\\\\
-------------------------------\\\\
\begin{cases}
y=1\\
x=3\\
\frac{dx}{dt}=2
\end{cases}\implies \cfrac{dy}{dt}=-\cfrac{3\cdot 2}{3\cdot 1}\implies \cfrac{dy}{dt}=-2$

7 0

3 years ago

What is the name for lines that do not lie in the same plane and are neither parallel nor intersecting?

miskamm [114]

Answer:

Its skew lines

Step-by-step explanation:

Because skew lines are lines that do not intersect nor parallel in the same graph

also, pls mark me as the brainliest

8 0

3 years ago

Constant of proportionality in 3/5y=8x​

Constant of proportionality in 3/5y=8x