R is inversely proportional to A
R = 12 when A = 1.5
a) Work out the value of R when A = 5.
b) Work out the value of A when R = 9

Part a: The value of R when is

Part b: The value of A when is

Explanation:

It is given that R is inversely proportional to A.

Hence, it can be written as

Also, it is given that and

Substituting these values in , we have,

Thus, the value of K is

Part a: To determine the value of R when

Now, substituting and in , we get,

Thus, the value of R is

Part b: To determine the value of A when

Now, substituting and in , we get,

Thus, the value of A is

connie < felicia < stew

step-by-step explanation:

stew:

we need to find the slope

m = (y2-y1)/ (x2-x1)

    = (2650-795)/(10-3)

    = 1855/7

265 words per minute

connie:

we need to find the slope

m = (y2-y1)/ (x2-x1)

we have two points (0,0) and (4,800)

m = (800-0)/(4-0)

  m = 800/4

    200 words per minute

felicia:

260 words per minute

200< 260 < 265

connie < felicia < stew