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3 years ago

How do you solve 2 + 8 - z = -24 for z

Mathematics

2 answers:

Naily [24]3 years ago

8 0

Answer:

z=34

Step-by-step explanation:

2 + 8 - z = -24

add

10-z = -24

subtract 10 from each side

10-z-10 = -24-10

-z = -34

multiply by -1

-1*-z = -34 * -1

z = 34

Tema [17]3 years ago

7 0

Answer:

Your answer is z = 34 here's how to get it

Step-by-step explanation:

combine 2+8 and get 10

10 - Z = -24

Next cancel out the 10 to get z by itself so subtract 10 from both sides

10-10-z= -24-10

-z = -34

now divide -z to remove the negative

-z/-z = -34/-z

here is your answer

z =-34

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Use the equation y=3(1/2)^x to determine the value of y if x = -2

sergey [27]

Given :-

A Equation , $\sf y = 3(1/2)^x$

To find :-

The value of y at x = -2.

Solution :-

The given equation is ,

$\red{\longrightarrow}\sf y = 3(1/2)^x$

Now on substituting x = -2 , we have,

$\red{\longrightarrow} y = 3(1/2)^{-2}$

Using the property of exponents as ,

$\red{\longrightarrow} \sf a^{-m}= 1/a^m$

We have ,

$\red{\longrightarrow}\sf y = 3(2)^2$

$\red{\longrightarrow}\sf y = 3(4)$

$\red{\longrightarrow}\bf y = 12$

Hence the required answer is 12.

8 0

3 years ago

4/3x+ 4 2/3 equivalent to

Dominik [7]

I believe this question should be a multiple choice question as there are numerous solutions.

Some of these solutions are:
4/3x+ 4 2/3 = 4/3x+ 8/3
4/3x+ 4 2/3 = 8/6x+ 4 4/6
4/3x+ 4 2/3 = 12/9x + 4 2/3

This can be explained as:
For 8/6x+ 4 4/6, divide the numerator by 2 and the denominator by 2 in each of the terms, the output will be the original expression.

For 12/9x + 4 2/3 , divide the numerator by 3 and the denominator by 3 in the first term (12/9x), the result will be the original expression.

5 0

3 years ago

I need help with this quick question!! Extra points and I’m marking brainlist to step by step explanation

mezya [45]

Answer:

They all are solutions!

Step-by-step explanation:

$3x-y=15\\6x-2y=30\\$