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Vesna [10]
2 years ago
5

15.

Mathematics
1 answer:
VMariaS [17]2 years ago
3 0

Answer:

400

Step-by-step explanation:

i think

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25=35x <br> What does x equal?
jeka57 [31]

Answer:

\frac{25}{35}, which simplifies into \frac{5}{7}

Step-by-step explanation:

You divide both sides by 35 and get \frac{25}{35}

5 0
2 years ago
10
Pavel [41]

Answer:

-1.5 or -1 1/2

Step-by-step explanation:

I can only guess what is actually asked for. a lot of things went wrong when copying this problem description in here.

the basic question I understand is to solve the equation of

4(n + 10) = 34

=>

n + 10 = 34/4 = 8.5 or 8 1/2

n = 8.5 - 10 = -1.5 or -1 1/2

6 0
3 years ago
What is <br><img src="https://tex.z-dn.net/?f=8.4%20-%204.2" id="TexFormula1" title="8.4 - 4.2" alt="8.4 - 4.2" align="absmiddle
STALIN [3.7K]

Answer:

4.2

Step-by-step explanation:

\mathrm{Write\:the\:numbers\:one\:under\:the\:other,\:line\:up\:the\:decimal\:points.}

\mathrm{Add\:trailing\:zeroes\:so\:the\:numbers\:have\:the\:same\:length.}

\begin{matrix}\space\space&8&.&4\\ -&4&.&2\end{matrix}

\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left}

\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:4-2=2

\frac{\begin{matrix}\space\space&8&.&\textbf{4}\\ -&4&.&\textbf{2}\end{matrix}}{\begin{matrix}\space\space&\space\space&\space\space&\textbf{2}\end{matrix}}

\mathrm{Place\:the\:decimal\:point\:in\:the\:answer\:directly\:below\:the\:decimal\:points\:in\:the\:terms}

\frac{\begin{matrix}\space\space&8&\textbf{.}&4\\ -&4&\textbf{.}&2\end{matrix}}{\begin{matrix}\space\space&\space\space&\textbf{.}&2\end{matrix}}

\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:8-4=4

\frac{\begin{matrix}\space\space&\textbf{8}&.&4\\ -&\textbf{4}&.&2\end{matrix}}{\begin{matrix}\space\space&\textbf{4}&.&2\end{matrix}}

=4.2

3 0
3 years ago
487<br> (2x + 4).<br> What is the value of x?<br> 190<br> 22<br> 670<br> o<br> 71°
Lubov Fominskaja [6]

skdhfarifkcdjn xekrjnfnveiosy b965n80v96mo5dfchNQCMIWOF

8 0
3 years ago
Simplify: (3x3 + 7x − 1) + (4x3 − 9x2 − 11x + 1)
irina [24]

Answer:

7x^3 - 9x^2 - 4x

Step-by-step explanation:

6 0
3 years ago
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