Answer:
You could use a piece wise function to simulate the speed someone is running at a given time in minutes.
for 
s = 9 mph
for 
s = 0 mph
for 
s = 6 mph
Step-by-step explanation:
I can't do graphs right now but there's an idea
Sandy ran 5 ½ during the second hour.
- Total amount Sandy used to jog for 2 hours = 13 miles
- Amount Sandy used to run in the 1st hour = 7 ½
<h2>Further Explanation</h2>
Therefore the amount Sandy used to run in the 2nd hour = Total amount Sandy used to jog for 2 hours – Amount Sandy used to run in the 1st hour
= 13 – 7 ½ (and can be expressed as 7 + ½)
= 13 – (7 + ½)
= 13 – 7 – ½
= 6 – ½ (otherwise expressed as 6/1 – 1/2)
= (6 x 2) – (1 x 1) / 2
= (12) – (1) / 2
= 12 – 1 / 2
= 11/2
= 5 ½
Hence, Sandy ran 5 ½ miles during the second hour.
Based on the above expression, it is observed that there is an element of fractions in the math problem. Also, BODMAS was clearly used to derive the solution to the given question.
Recall, 13 – (7 + ½). The mathematical signs, (–) and (+) were multiplied; one of mathematics rule states that – x + = –; thus 13 – 7 – ½
Notably, fractions deal with denominators and numerators; and in these questions, with the help of BODMAS, they (6/1 – 1/2) were used to factor each other out to derive the final answer 5 ½.
LEARN MORE:
KEYWORDS:
- bodmas
- fractions
- mathematical sign
- denominators
- numerators
Answer:
0.61
Step-by-step explanation:
Add 0.14 to both sides of this equation, obtaining r = 0.61.
Answer:
the difference: $2,192.64
Step-by-step explanation:
After 1 year, the truck has lost 8% of its value: v(x) = $32,500(0.92)^1, or
$29,900.
After 2 years, v(x) = $32,500(0.92)^2, or $27,500. Finally, after 3 years,
v(x) = $32,500(0.92)^3 = $25,307.36.
Subtracting $25,307.36 (the value after 3 years) from $27,500 (the value after 2 years) yields the difference: $2,192.64
