The answer is D I’m pretty sure!? Hopefully you got it right!!!!!!!
Let's say the original price was "x", thus "x" is the 100%, and we know that 15 is 80% of that, thus
Answer:
The Awnser Is Y=9/7
Step-by-step explanation:
The rate of change of stamp collection was $57.5 per year.
Rate is comparison of two related quantities.
Often the second quantity is time (per second, per hour, etc) but it can be anything.
Can be in the style "this per that" or as a single number calculated using division.
Example: Sam makes 3 pancakes every 6 minutes, that is a rate of:
• 3 pancakes per 6 minutes
• 0.5 pancakes per minute
• 30 pancakes per hour
• an hourly rate of 30
By formula the rate of change = Change in cost/ Time taken
=( $980 - $420)/ 8years
= $460/ 8 years
= $57.5 per year
Thus the rate of change of stamp collection was $57.5 per year.
Learn more about rate here :
brainly.com/question/12786410
#SPJ4
Answer:
5.7
Step-by-step explanation:
Creating the point into a triangle, both sides a 4.
As the Pythagorean theorem goes, a^2+b^2=c^2
4^2+4^2=
16+16=
32
The square root of 32 is about 5.7
The distance between the points is about 5.7 units
