I hope this helps you
37=1.37 prime
71=1.71 prime
65=5.13 composite
82=2.41 composite
Answer:
B, or -75
Step-by-step explanation:
f(x) is a function of x.
If f(x) = 50 when x = -10, you can rearrange this information.
f(-10) = 50
f = -5
If f = -5...
-5 ( 15) = -75
Answer:
Part 1)
5.5 inches.
Part 2)
Step-by-step explanation:
We can write a linear equation to model the function.
Let <em>y</em> represent the inches of snow and let <em>t</em> represent the number of hours since the end of the snowstorm.
A linear equation is in the form:
Since there was 18 inches of snow in the beginning, our <em>y-</em>intercept or <em>b</em> is 18.
Since it melts at a constant rate of 2.5 inches per hour, our slope or <em>m</em> is -2.5.
Substitute:
This equation models how much snow Jamal will have on his lawn after <em>t</em> hours of snow melting.
So, after five hours, <em>t</em> = 5. Substitute and evaluate:
After five hours, there will still be 5.5 inches of snow.
Answer:
it is the 3rd option
Step-by-step explanation:
Answer:
2.5 hrs;t/c=h
Step-by-step explanation
The easiest way to do this is by setting up your units so that they cancel to give you what you want. You are looking for hours, and you are given both a rate ($5/hour) and a final amount ($12.50).
($12.50) / ($5/hour) = 2.5 hours
Now just convert 2.5 hours into actual time units, (2 hours, 30 minutes)
Let's write this into a variable equation. Let's call t the "total cost" and c the "hourly cost" and h "hours rented."
t/c = h