Answer:
Step-by-step explanation:
.007 = 7 x
.07 = 7 x
7 = 7 x
700 = 7 x
sub
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since -x^2+x+19=y
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x=-x^2+x+19+80
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x=-x^2+x+99
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0=-x^2+99
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x^2=99
x=3√11
x=y+80
3√11=y+80
minus 80 both sides
-80+3√11=y
x=3√11
y=-80+3√11
solution
(x,y)
(3√11,-80+3√11)
<h2>12 forks</h2><h3></h3><h3>Knives = x</h3><h3>Forks = 2x</h3><h3>Spoons = 2x</h3><h3 /><h3>x + 2x + 2x = 30</h3><h3>5x = 30</h3><h3>x = 6</h3><h3 /><h3>Knives = 6</h3><h3>Spoons = 12</h3><h3><u>Forks = 12</u></h3><h3><u /></h3><h3><em>Please let me know if I am wrong.</em></h3>
You will need 13 vans with 3.3 rounded to 4 kids left over because 146 plus 14 equals 160 divided by 12 will get you 13.3