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3 years ago

Anyone need help with multiplying decimals I got u

Mathematics

1 answer:

const2013 [10]3 years ago

7 0

I know u gonna use calculator girl.

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Solve the simultaneous equations 5x+2y=25 5x-y=10

Pavlova-9 [17]

5x + 2y = 25;

5x + 2y = 25;5x - y = 10;

5x + 2y = 25;

5x = 10 + y;

(10 + y) + 2y = 25;

5x = 10 + y;

10 + 3y = 25;

5x = 10 + y;

3y = 15;

5x = 10 + y;

y = 5;

5x = 10 + y;

y = 5;

5x = 10 + 5;

y = 5;

5x = 15;

y = 5;

x = 3.

Answer: (3; 5).

4 0

2 years ago

What is the x intercept of the equation that passes through (1,-6) and is perpendicular to y=1/3x +1

fomenos

$\bf y=\stackrel{slope}{\cfrac{1}{3}}x+1\impliedby \textit{slope of this line, so a perpendicular will be}
\\\\\\
\textit{perpendicular, negative-reciprocal slope for}\quad \cfrac{1}{3}\\\\
negative\implies -\cfrac{1}{ 3}\qquad reciprocal\implies - \cfrac{ 3}{1}\implies -3\\\\
-------------------------------\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1\\
&&(~1 &,& -6~)
\end{array}$

$\bf slope = m\implies -3
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-6)=-3(x-1)
\\\\\\
y+6=-3x+3\implies 0+6=-3x+3\implies 3=-3x\implies \cfrac{3}{-3}=x
\\\\\\
-1=x\qquad \qquad \qquad \qquad \qquad \qquad \qquad (~-1~,~0~)$

8 0

3 years ago

Please help

neonofarm [45]

Answer:

37005

36740

35205

Step-by-step explanation:

5 0

2 years ago

PLZ HELP!!!!

kherson [118]

Answer:

a=1 b=4 c=-5

Step-by-step explanation:

7 0

2 years ago

4(2x−3)=4(2x)−4(3) what is the proptery

Nikitich [7]

9514 1404 393

Answer:

distributive property

Step-by-step explanation:

The distributive property of multiplication over addition lets you expand the product in the manner shown.

4 0

3 years ago