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3 years ago

Which expression is equivalent to 3(6m) + m? 19m? 21m? 7m+3? Or 18m +6m^

Mathematics

1 answer:

MariettaO [177]3 years ago

3 0

3(6m)+m *Distribute
18m+m *Simplify/Add
19m
19m=19m :)

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10 is subtracted from 2 times a number

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Answer: the equation is 2n-10

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3 years ago

Last year at a certain high school, there were 75 boys on the honor roll and 50 girls on the honor roll. This year, the number o

Fantom [35]

In linear equation, 15.2% did the total number of students on the honor roll decrease.

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
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50 × 24% = 12

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50+75 = 125

19 ÷125= 15.2%

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brainly.com/question/11897796

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1 year ago

If M is the midpoint of XY, find the coordinates of X if M(-3,-1) and Y(-8,6)

vova2212 [387]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
X&({{ a}}\quad ,&{{ b}})\quad 
% (c,d)
Y&({{ -8}}\quad ,&{{ 6}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)$

$\bf \left( \cfrac{-8+a}{2}~,~\cfrac{6+b}{2} \right)=\stackrel{M}{(-3,-1)}\implies 
\begin{cases}
\cfrac{-8+a}{2}=-3\\\\
-8+a=-6\\
\boxed{a=2}\\
----------\\
\cfrac{6+b}{2}=-1\\\\
6+b=-2\\
\boxed{b=-8}
\end{cases}$

5 0

2 years ago

-6x-4+5x=4<br> What is "x". Please show your work.

4vir4ik [10]

Answer:

first thing to do is combine like terms

now you would have -x-4=4

this is because you added -6x+5x

now you would add 4 to each side

now you would have-x=8

then you would divide the negative because x has to be positive

now you would have x= -8

that is your answer. if you any questions just ask :D

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to 10x to the 6th why do the 12 / -5x to the negative 2 y to

Law Incorporation [45]

Answer: #2

Step-by-step explanation:

cuz i said so

6 0

2 years ago