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Tomtit [17]
1 year ago
12

the sum of two numbers is 123. when the larger number is added to 5 times the smaller, the sum is 343. find the numbers.​

Mathematics
2 answers:
vovikov84 [41]1 year ago
3 0
Create a system of equations
x + y = 123
5x + y = 343

I use substitution
y = 123 - x
5x + 123 - x = 343
4x + 123 = 343
4x = 220
x = 55

Plug in
x + y = 123
55 + y = 123
y = 68

Check
5x + y = 343
5(55) + 68 = 343
275 + 68 = 343
343 = 343
nordsb [41]1 year ago
3 0
234+657=985 62793)2799994)252888
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First, simplify \frac{2}{7} x to \frac{2x}{7} / Your problem should look like: -\frac{2x}{7} + 6 + \frac{1}{7} x = 18
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Third, simplify - \frac{2x}{7} + 6 + \frac{x}{7} to - \frac{x}{7} + 6 / Your problem should look like: -\frac{x}{7} + 6 = 18
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Answer: x = -84

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3 years ago
Write the equation for the perpendicular bisector of a segment that has endpoints (–1, 10) and (3, 6).
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choli [55]

The position function of a particle is given by:

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The velocity function is the derivative of the position:

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We have two possible answers:

\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}

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undefined

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