Just divide 2pie on both sides so your equation would be C/2pie=r
Answer:
y= -4x+7
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Let's find the gradient of the line first.
Using the above formula,
Susbt. m= -4 into the equation:
y= -4x +c
Subst. a coordinate to find c.
When x=3, y= -5,
-5= -4(3) +c
-5= -12 +c
c= 12 -5
c=7
Thus the equation of the line is y= -4x +7.
Answer:
55/64
Step-by-step explanation:
convert mixed number into improper fraction
11/8×5/8
multiply the fractions
11/8×5/8
11×5=55
8×8=64
Answer: 55/64
Answer:
Rhea's estimation is unreasonable.
Step-by-step explanation:
Identify what you know:
1) Rhea calculates that she can write 1.25 pages every 2 hours
2) Rhea is calculating how long it would take her to write 6 pages.
Using Rhea's initial calculation, we can figure out roughly, how long it would take her to finish 6 pages.
First we need to divide 6 by 1.25, to figure out how many "2 hour" periods it would take Rhea.
6/1.25 = 4.8
4.8 x 2 = 9.6
It would take Rhea roughly 9.6 hours to finish 6 pages, which is 3.6 hours more than her original estimation. Thus, her estimate is unreasonable.
