3 years ago

3x - 7y = 11 What is y equal to?

Mathematics

1 answer:

lara31 [8.8K]3 years ago

3 0

Answer:

3.666666667

Step-by-step explanation:

Simplifying

3x + -7y = 11

Solving

3x + -7y = 11

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '7y' to each side of the equation.

3x + -7y + 7y = 11 + 7y

Combine like terms: -7y + 7y = 0

3x + 0 = 11 + 7y

3x = 11 + 7y

Divide each side by '3'.

x = 3.666666667 + 2.333333333y

You might be interested in

List the following fractions from least to greatest. 1/6 2/3 1/2 1/3

ehidna [41]

1/6, 1/3, 1/2, 2/3.

7 0

3 years ago

Read 2 more answers

Please put this in order from least to greatest 4 1/2 - 4 - 5 - 4 1/4 -4 3/8 - 4 1/8 - 4 3/4 - 4 5/8

Svet_ta [14]

4 - 4 1/8 - 4 1/4 - 4 1/2 - 4 5/8 - 4 3/4 - 5
there you you go bro

4 0

3 years ago

If 6^ = 1/126 find the value of x Please ask help with b

Artemon [7]

9514 1404 393

Answer:

a) x = -3

b) 1/250

Step-by-step explanation:

The applicable rule of exponents is ...

a^-b = 1/a^b

a) It is helpful to know that 216 = 6^3.* Then you would realize that ...

$6^x=\dfrac{1}{216}=\dfrac{1}{6^3}=6^{-3}\\\\x=-3$

If you don't know that, then you can solve the equation using logarithms. Taking the log of both sides, you have ...

x·log(6) = log(1/216)

x = log(1/216)/log(6) = -3

$5^{-3}\times 2^{-1}=\dfrac{1}{5^3}\times\dfrac{1}{2^1}=\dfrac{1}{125}\times\dfrac{1}{2}=\boxed{\dfrac{1}{250}}$

_____

* This would be on your list of cubes of small integers that you might want to memorize, along with squares of numbers less than 20.

7 0

3 years ago

Lauren can spend no more then 10$ at a video game arcade. Each game in the arcade costs 0.25$

Free_Kalibri [48]

Answer: she can play 40 games

step-by-step explanation:
10/0.25
40

4 0

3 years ago

The diameter of a water molecule is about 0.0000003 millimeters, which can be written as 3x10^n millimeters. What is n?

pishuonlain [190]

Answer:

n = - 7

Step-by-step explanation:

$0.0000003 = 3 \times {10}^{ - 7} \\ \implies \: n \: = - 7$

8 0

4 years ago