Answer:
the number of bacteria increases at a rate of 15% each day
Step-by-step explanation:
Given the function :
f(x) = 256(1.15)^x
The function represents an exponential growth function ; comparing the equation with the general form of an exponential growth function :
f(x) = A(1 + r)^t
A = the initial value of the population, = 256
(1 + r),; r = growth rate
Therefore, to solve for r ;
1 + r = 1.15
r = 1.15 - 1 ; r = 0.15
Hence, growth rate = 0.15 = 0.15 * 100% = 15%
Hence, the number of bacteria increases at a rate of 15% each day
30 x 30 + 25 x 15 = $1275
So,
30 tickets were sold from the $30 type, while 15 tickets were sold from the $25 type!
Answer:
y=-3
Step-by-step explanation:
Yes. Find a common denominator between 2/8 and 1/5. 2/8 simplifies to 1/4, so we're going to instead find the least common denominator between 1/5 and 1/4. The least common multiple of 4 and 5 is 20. In order to change 1/5 to something / 20, we need to multiply both the numerator and denominator by 4: 4/20. For 1/4, we need to multiply both the numerator and denominator by 5: 5/20. So, 1/4 (2/8) is greater than 1/5.