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3 years ago

3^x/3^y = 81 What is x - y?

Mathematics

2 answers:

Cerrena [4.2K]3 years ago

4 0

If (3)

x+y

=81 and (81)

x−y

=3, then the values of x and y are 17/8 and 15/8

Step-by-step explanation:

baherus [9]3 years ago

3 0

answer:

$x - y =4$

steps shown below:

$\frac{3^x}{3^y} = 81$

$3^{x-y} = 81$

$3^{x-y} = 3^4$

$x - y =4$

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What value of "p" will the pair of equations

Nikolay [14]

Answer:

Step-by-step explanation:

Slope is the same as coefficient of x

From the equation

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For this equation

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To get p

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3 years ago

How do you solve this equation . Q=3a+5ac

mr_godi [17]

A "solution" would be a set of three numbers ... for Q, a, and c ... that
would make the equation a true statement.

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8 0

3 years ago

Alejandro loves to go to the movies. He goes both at night and during the day. The cost of a matinee is 7 dollars. The cost of a

saw5 [17]

Answer:

Alejandro went to 8 matinee shows and 4 evening shows.

Our system of equations:

x + y = 12

7x + 12y = 104

Correct statement and question:

Alejandro loves to go to the movies. He goes both at night and during the day. The cost of a matinee is 7 dollars. The cost of an evening show is 12 dollars.

Alejandro went to see a total of 12 movies and spent $ 104. How many of each type of movie did he attend? Write a system of equations.

Source:

Previous question that can be found at brainly

Step-by-step explanation:

Step 1:

Let x to represent the number of matinee shows Alejandro went to.

Let y to represent the number of evening shows Alejandro went to.

Now, let's write our system of equations:

x + y = 12

7x + 12y = 104

*********************

x = 12 - y

*********************

7 (12 - y) + 12y = 104

84 - 7y + 12y = 104

5y = 104 - 84

5y = 20

y = 20/5

y = 4 ⇒ x = 12 - 4 = 8

Alejandro went to 8 matinee shows and 4 evening shows.

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3 years ago

Please help!! (Will give brainy!) (Geometry) (look at picture)

stiv31 [10]

Answer:

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Step-by-step explanation:

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3 years ago

(Can somebody find the sum of this) (5+2i)+(8-3i)

7nadin3 [17]

Hey there!!

Okay so here are the steps....

(5 + 2i) + (8 - 3i) <---- when we have exponents we should worry about the "i" because it is equal to √-1 but here it isn't the case.


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I hope this helps! ^__^

7 0

3 years ago