The answer in fraction form is 1/27
x = 1/27
Based on the figures above, the numbers of children that attended the park that day is 10,000.
<h3>What is the matrix equation about?</h3>
Fist we have to use the determinant to solve for c and as such:

=
= 100000/10
=10,000
Therefore, Based on the figures above, the numbers of children that attended the park that day is 10,000.
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120+.5x=50+.7x
Subtract 50 from both sides and then subtract .5x from both sides to get 70=.2x. Then divide both sides by .2 to get x=350.