11 kids total and there’s 6 girls and 5 boys so that means there’s 5/11 boys and for girls it’s 6/11
$6 is 20% of a $30 haircut
In this question, we have to factor the given polynominal which is
We need two factors of -24 whose sum is -2, and -6+4=-2
So we can write f(x) as
f(x) = (x-6)(x+4)
And that's the required factored form .
One expression: 0.75 x 55
another expression: (100% - 25%) x 55
Answer:
a) r(x) = 28x
b) p(x) = -x^2 +30x +9
c) 15
Step-by-step explanation:
a) Let x represent the number of items sold. Each sale results in $28 of revenue, so the revenue function r(x) is ...
r(x) = 28x
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b) p(x) = r(x) - c(x) = 28x -(x^2 -2x -9)
p(x) = -x^2 +30x +9
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c) The axis of symmetry of ax^2 +bx +c is -b/(2a). Here, the axis of symmetry of the profit function is ...
x = -30/(2(-1)) = 15
15 is the quantity of sales that maximizes profit.