Answer:
£75
Step-by-step explanation:
Current value= 80
previous value= 100
current value 1
previous value = 100/80
current value- £60
previous value 100x60/80
=6000/80
= £75
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Answer:
(b) After 8 years, the savings account has $255.32
Step-by-step explanation:
Given
---- initial (i.e. when t = 0)
Solving (a): Model the situation
For growth, an exponential function is represented as:
This gives:
Solving (b): The solution to (a)
We have:
Express percentage as decimal
Answer:
29°
Step-by-step explanation:
151° + a=180°
We know the sum of angles in a straight line is 180°
a= 180°-151°
The sign changed as it changed sides
a= 29°
154 text messages were sent
explanation:
0.25x+7=45.50
subtract 7 from both sides
0.25x=38.5
divide both sides by 0.25
x=154
154 text messages