Answer:
P = 8
Step-by-step explanation:
Given that P varies inversely with x then the equation relating them is
P =
← k is the constant of variation
To find k use the condition P = 7 when x = 8 , then
7 =
( multiply both sides by 8 )
56 = k
P =
← equation of variation
When x = 7 , then
P =
= 8
Answer:
$273
Step-by-step explanation:
$3900= 100%
$39 = 1%
39(1%)*7= $273 (7%)
Answer:
x^2 + 1.1x + 0.28
Step-by-step explanation: