Answer:
$471.65
Step-by-step explanation:
-The value of the laptop after each year is calculated by the formula:

where:
is the value at time t
is the initial value
is the rate of depreciation
is the time
#We substitute the values to solve for the value after 3 years(2010-2007=3):

Hence, the value of the laptop in 2010 is $471.65
From c=b-5
Independent variable is b, the number of cookies in the jar before your visit
Dependent variable is c, the number of cookies remaining in jar
Any questions please just ask. Thanks!
Answer:
x=10 and x-7 is the answer
Step-by-step explanation:
a)2x-7=13
2x=13+7
2x=20
x=20/2
x=10
b)3x+4=25
3x=25-4
3x=21
x=21/3
x=7
i hope it will help you
Answer:
£1.6
Step-by-step explanation:
£20 ÷ £2.3= 8 remainder 1.6
change= £1.6