Answer:
Yes.
Step-by-step explanation:
Most people are going to say 4x2=8 so 20x2=40, then do a huge math mess up and think they discounting $1.33 after the first 4. this is incorrect.
Seeing as $20 is 4 tickets we can safely say, each ticket is $5 each.
Basic mathematics, 5x7=35. Paying for 7 tickets at $5 each, that is the correct constant price.
Answer:
length √17
Step-by-step explanation:
You must either share a diagram showing that this is a right triangle, or say in so many words that it's a right triangle.
We'll apply the Pythagorean Theorem. First, let's square 8 and 15, obtaining 64 and 225. Next, notice that the sum of 64 and 225 is 289, which is the square of 17. The Pythagorean Theorem states in this case that 8^2 + 15^2 = 17^2.
The third side is the hypotenuse of this right triangle. That hypotenuse / third side has length √17. This can't be reduced / simplified.
X=11.2
10. 14
—- = ———
8. X
10x= 112
————-
10. 10
X=11.2
88,710 is already to the nearest ten. That is simple not trying to be mean. Hope I helped.
Answer:
Ok, an exponential decay is written as:
P(t) = A*(1 - r)^t
Where A is the initial population, r is the rate of decay and t is the unit of time.
We know that the initial population is 15g
then:
P(t) = 15g*(1 - r)^t
And at t = 3hs, the populations is 5g
P(5h) = 5g = 15g*(1 - r)^5
5/15 = 1/3 = (1 - r)^5
(1/3)^(1/5) = (1 - r) = 0.8
Now, the half life time of the sustance is t = x, such that the population reduces to it's half:
P(x) = A/2 = 15g/2 = 7.5g
Then:
7.5g = 15g*0.8^x
7.5g/15g = 1/2 = 0.8^x
Now, remember that if we have:
a = b^x
then
x = ln(a)/ln(b)
ln(1/2)/ln(0.8) = x = 3,11 hours
