Answer: 3/K
Step-by-step explanation:
From the question, we are informed that Mary bought K stamps for 3 dollars and we are told to find the cost of one stamp.
Number of stamps bought = K
Cost of K stamps bought = 3 dollars
Cost of ones stamp = Cost of stamps bought ÷ Number of stamps bought
= 3/K
Therefore, the cost of one stamp is 3/K
The equation s(n) = 20.bn is an exponential equation, and the hourly percent growth rate of the bacteria would be 85%.
<h3>How to determine the hourly percent growth rate?</h3>
The value of b is given as:
b = 1.85%
Let the hourly percent growth rate of the bacteria be r.
So, we have:
b = 1 + r
Substitute b = 1.85%
1.85 = 1 + r
Subtract 1 from both sides
r = 0.85
Express as percentage
r = 85%
Hence, the hourly percent growth rate of the bacteria would be 85%.
Read more about exponential equations at:
brainly.com/question/11832081
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1/3x+3x. Hope that helps! :D
<span>so you have 7 hair bands to 4 number of ribbons</span>
<h2>
Answer: 31 & 32</h2>
Step-by-step explanation:
So we first need to assign letters to represent the numbers.
Let 'a' be the larger number and 'b' the smaller.
Now we can use this to write equations that we can solve simultaneously to find both 'a' and 'b'.
according to the question:
a + 4b = 156 [1]
a - b = 1 [2] (this is because the integers are consecutive
We can rearrange [2] to make 'a' the subject: a = b + 1 [3]
We can then substitute [3] into [1] and solve for b
(b + 1) + 4b = 156
5b = 155
b = 31
Now we can find 'a' using [3]
a = 31 + 1
a = 32
