Let
x------> hours worked by Sara last week
y------> hours worked by Joan last week
z------> hours worked by Erin last week
we know that
x=28 hours ------> equation 1
y=x-6-----> equation 2
substitute the value of x in equation 2
y=28-6=22 hours
z=y/2------> equation 3
substitute the value of y in the equation 3
z=22/2=11 hours
<u>the answer is</u>
Sara worked 28 hours last week
Joan worked 22 hours last week
Erin worked 11 hours last week
Answer:
use a graphing calculator
Step-by-step explanation:
go for it mate
Barrel is assumed to be a cylinder
surface area of a cylinder=2 caps+lateral area
so
SA=2pir^2+2hpir
h=8
r=8
SA=2pi8^2+2(8)pi8
SA=2pi64+128pi
SA=128pi+128pi
SA=256pi square feet or aprox
SA=804.248 square feet is the surface area of 1barrel
Answer:
Step-by-step explanation:
Given
Required
Determine the inverse
Replace g(n) with y
Swap positions of x and y
Make y the subject
Replace y with g'(n)
Answer:
3550
Step-by-step explanation:
C.P=Rs 1250
S.P=8(12)(50)
Rs4800
P=S.P-C. P
=Rs4800-Rs1250
= Rs3550