Answer:
PR = 12
Step-by-step explanation:
P-----------Q-----------R----------S
ratio
4:2:1
PS = 14
add the ration = 4 + 2 + 1 = 7
14 / 7 = 2
PQ at 4 x 2 = 8
QR at 2 x 2 = 4
RS at 1 x 2 = 2
------------
14
PR = PQ + QR
PR = 8 + 4
PR = 12
Distribute it, a(b+c) = ab+ac
=(-2-c)(-1)
= (-2)(-1)+(-c)(-1)
= 2+c
Answer: 612
Step-by-step explanation:
Substitute the value 6 (hours) in the equation and solve.
Y = 92x+60
Y = (92*6)+60
Y=552+60 = 612
