If you have 150 total gift cards, and 130 are worth 5$, 15 are worth 50$, that would leave five 100$ gift cards for a sum of 150 gift cards.
All you would do is divide the 5/150 = 30
There's a 30% chance that someone will get a 100$ gift card.
Since the quadratic formula of ax^2+bx+c is
x=(-b+-(plus OR minus) sqrt (b^2-4ac))/2a, we can get that a is 1 (since 1*x^2 is x^2), b is 4, and c is -16, so x=(-4+-sqrt((-4)^2-4*1*(-16)))/2*1
= (-4+-sqrt(16-(-64)))/2=(-4+-sqrt(80))/2 which is either (-4+sqrt(80))/2 or
(-4-sqrt(80))/2. Since 80 is divisible by 4 (aka 2 squared), we can write sqrt(80) as 2*sqrt(20) as 4 goes into 80 20 times, getting (-4+2sqrt(20))/2 or
(4-2sqrt(20))/2, and crossing out the 2's we get (-2+sqrt(20)) or (-2-sqrt(20))
The answer to your question is 5x-17
Answer:
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Step-by-step explanation:
Answer:
<h2>6</h2>
Step-by-step explanation:
Given the expression , we are to look for the value of the expression when y = 2. <em>To do that we are going to substitute y as 2 into the given expression and simplify the resulting expression</em> as shown.
<em>Hence the value of the expression when y = 2 is 6</em>