Given
Initial balance 1800
Annual rate 0.05
Y the value of mutual fund
X time in years
The equation models the value of the mutual fund is
Y=1800 (1+0.05)^x
Y=1800 (1.05)^x...answer
Hope it helps!
Do you mean (x=26)? If so, 7 times 26 + 14 +2 times 26 + 3 = 2... i dont know...
Let cost of Emma's phone = x
Given that cost of Sophie's phone = 640
Then ratio of their phones cost will be x:640 or x/640
Given that ratio of their phones cost is 7:8 or 7/8
So both ratios will be equal.
x=560
So the new ratio of the cost of their phones will be 560:640
Now we have to find about how much should the prices of their phones decrease in order to have a ratio of 9:11.
So let that decreased amount is k then we will get equation :
11(560-k)=9(640-k)
6160-11k=5760-9k
6160-5760=11k-9k
400=2k
200=k
Hence final answer is prices of their phones should decrease by 200 in order to have a ratio of 9:11.
Answer:
21.3 m
Step-by-step explanation: