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Alex73 [517]
3 years ago
13

You put $16,500 in an investment. After 54 months you have a balance of $19,470. What is the rate of simple interest?

Mathematics
1 answer:
Sauron [17]3 years ago
7 0

Answer:

The interest after 54 month is $2970 and the rate is 4%.

Step-by-step explanation:

The amount of interest gathered in 54 months is equal to the final amount subtracted by the initial one. We have:

interest = 19470 - 16500

interest = $2970

In order to calculate the rate we need to apply the formula for simple interest shown below:

interest = C*r*t

Where C is the initial amount, r is the rate of interest and t is the time elapsed in years. We have:

2970  = 16500*r*(54/12)

2970 = 16500*r*(4.5)

74250*r = 2970

r = 2970/74250

r = 0.04

The rate is r*100% = 4% per year.

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What is the value of x, if the equation 2(x + 60) + 2(30) = 200
lawyer [7]
X= -530

This is because:

2(x+60)+2(30)=200
•distribute the 2s into each parentheses
2x+1200+60=200
•combine like-terms
2x+1260=200
•isolate 2x by subtracting 1260 from both sides of the equation
2x=200-1260
•subtract 1260 from 200
2x= -1260
•divide both sides by 2 so you can have x all alone
2x/2= -1260/2
Hence
x= -530
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