so, 13 of the 20 tables have 6 chairs each.
that means, the remaining 7 tables, have 4 chairs each.
13 * 6 = 78 chairs total for those 13 tables.
7 * 4 = 28 chairs total for the remaining 7 tables.
78 + 28, that's how many.
Let $\overline{XY}$ be a tangent to a circle, and let $\overline{XBA}$ be a secant of the circle, as shown below. If $AX = 15$ a
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The graph shows the solution of your equations is
.. (x, y) = (-6 2/3, -9 2/3)
The closest point to that of the choices offered is (-5, -7.2).
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The offered "approximations" are not very good approximations.
.. (x, y) = (-6 2/3, -9 2/3)
The closest point to that of the choices offered is (-5, -7.2).
___
The offered "approximations" are not very good approximations.