<h3>
Answer:</h3>
A. d = 5 − 15t; d = 18t
<h3>
Step-by-step explanation:</h3>
Derrick's distance from home is initially 5 miles and is decreasing at the rate of 15 miles per hour. His distance from home can be modeled by ...
... d = 5 - 15t . . . . . . d in miles; t in hours
Mark's distance from home is initially zero and is increasing at the rate of 18 miles per hour. His distance from home can be modeled by ...
... d = 18t . . . . . . . . . d in miles; t in hours
Together, these equations form the pair ...
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<em>Comment on the equations</em>
There is nothing in the problem statement or definition of the variables to suggest that one distance is measured in the same direction as the other, or that one value of d has any relationship to the other.
Usually, a "system of equations" expresses relationships among variables that all have the same definition with respect to some problem statement. Here, both values of d are "distance from home", but they don't necessarily have any relationship to each other. Their being the same value doesn't mean the boys have met, for example.
Hello!
your answer is the second one on the list.
I hope this helps, and have a nice day!
Hello again!
Answer:
The correct answer is B. 18 months.
Step-by-step explanation:
I just typed in "credit card payoff calculator" in g00gle, and it should be the first one you see.
That was the website I used to solve this problem. You can use that for other problems you need to solve too.
Hope this helps :)
It will approximately take 7 months to double $700 at a %14 interest rate.
700•.14=98
98 divided into 700= 7.14
Answer:
0
Step-by-step explanation:
1/3(21) -1 -1/2(12)
7 - 1 - 1/2(12)
6 - 1/2(12)
6 - 6
0
