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3 years ago

8

The sum of a number and 4 times another number is 25. What is the equation?

1 answer:

Sophie [7]3 years ago

4 0

Let x and y represent the two numbers. The equation matching the word description is ...
x +4y = 25

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2 years ago

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if y is the midpoint of xz, y is located at (3,-1), and z is located at (11,-5), find the coordinates of x

svlad2 [7]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ X(\stackrel{x_1}{x}~,~\stackrel{y_1}{y})\qquad Z(\stackrel{x_2}{11}~,~\stackrel{y_2}{-5}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left(\cfrac{11+x}{2}~~,~~\cfrac{-5+y}{2} \right)=\stackrel{\stackrel{midpoint}{y}}{(3,-1)}\implies \begin{cases} \cfrac{11+x}{2}=3\\[1em] 11+x=6\\ \boxed{x=-5}\\ \cline{1-1} \cfrac{-5+y}{2}=-1\\[1em] -5+y=-2\\ \boxed{y=3} \end{cases}$

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3 years ago

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Veronika [31]

Answer:

First one is a, second one is d, and the third one is b

Step-by-step explanation:

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2 years ago

The next step in the solution for which equation could use the distributive property?

olya-2409 [2.1K]

Equation A. 4(t-6)=3t+9; 4t-24=3t+9; t-24=9; t=9+24; t=33;

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3 years ago