<span>Let the haircut cost "x" dollars, Then perm costs "2x" dollars, and 5 dollars for lunch.
now here's the solution:
x + 2x + 5 = 95
3x = 90
x = 30 (haircut)
so 2x = 60 (which is the cost of the perm)
Hope this helps!
</span>
Answer:
The answer is 133.5
Step-by-step explanation:
See the image above
←minus 5---minus 4----minus 3-------minus 2--------minus 1-----------0--------------------------------1→
All you need to do is divide 45 by 2 and then multiply what you get by 3 ➗
Answer:
(a)
(b)5,832 Mosquitoes
(c)5 days
Step-by-step explanation:
(a)Given an original amount at t=0. The population of the colony with a growth rate , where k is a constant is given as:
(b)If and the population after 1 day, N(1)=1800
Then, from our model:
N(1)=1800
Therefore, our model is:
In 3 days time
The population of mosquitoes in 3 days time will be approximately 5832.
(c)If the population N(t)=20,000,we want to determine how many days it takes to attain that value.
From our model
In approximately 5 days, the population of mosquitoes will be 20,000.