3 years ago

The temperature was -3c last night. it is now -4c. what was the change in temperature

Mathematics

1 answer:

Sladkaya [172]3 years ago

3 0

-4-(-3) = -4+3= -1
The change was -1C

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vesna_86 [32]

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3 years ago

Solve the following system of equations , and find the ordered pair. X =-y-6 and -7x +6y=-10

Blababa [14]

Given:

There are given the equation:

$\begin{gathered} x=-y-6...(1) \\ -7x+6y=-10...(2) \end{gathered}$

Explanation:

From the equation (1):

Put the value of x into the equation (2):

So,

From the equation (2):

$\begin{gathered} \begin{equation*} -7x+6y=-10 \end{equation*} \\ -7(-y-6)+6y=-10 \\ 7y+42+6y=-10 \\ 13y=-10-42 \\ 13y=-52 \\ y=-4 \end{gathered}$

Now,

Put the value of y into the equation (1):

So,

From the first equation:

$\begin{gathered} \begin{equation*} x=-y-6 \end{equation*} \\ x=-(-4)-6 \\ x=4-6 \\ x=-2 \end{gathered}$

Final answer:

Hence, the ordered pair of the solution is shown below:

$(-2,-4)$

5 0

1 year ago

If f(x)=6x-9, find f(4)

kipiarov [429]

Answer:

Step-by-step explanation:

In order to find the answer, plug in 4 for x.

$f(x)=6x-9\\f(4)=6(4)-9\\f(4)=24-9\\f(4)=13$

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2 years ago

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denis23 [38]

Answer:

Step-by-step explanation:

the first values represent the inputs, which are the x values and the other values are the outputs which are the y values

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2 years ago

3. Fine the value of x. <br> A) 3.5<br> B)7<br> C) 5<br> D)10

Rom4ik [11]

Answer:

I would say B

Step-by-step explanation:

I think

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3 years ago

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