2 years ago

Please tell me the conversion rates below: HELP HELP FAST DO ALL OR I WILL DELETE YOU QUESTION PLZ HELP FAST

Mathematics

1 answer:

Nuetrik [128]2 years ago

3 0

1. 39 or 40
3. 0.998
4. 0.984
(these may not be accurate but i’m pretty sure they are! if they aren’t sorry about that)

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What is the first step to solve the following system of equations using substitution?

Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

$x = 4, y = 5$

Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

$x - y = -1$

$2x - y = 3$

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

$x-y=-1$

Add y to both sides

$x-y+y=-1+y$

$x=-1+y$

Thus, option A) is true.

<u>NOW LET US SOLVE THE REMAINING PORTION</u>

$\mathrm{Subsititute\:}x=-1+y$ to solve for y

$\begin{bmatrix}2\left(-1+y\right)-y=3\end{bmatrix}$

$-2+y=3$

$y=5$

For x = -1 + y

substitute y = 5

$x=-1+5$

$x=4$

Thus, the solution to the system of equations be:

$x = 4, y = 5$

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Lubov Fominskaja [6]

Your answer would be 4,410

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Answer:

a) -9/-10 (4th)

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Please help! I will mark as brainliest IF answer is right. <3

kramer

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Domain x belongs to [-4 , 0]

Range y belongs to [-4 , 4]

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