Find the simple interest earned on $650 invested at 3 1/2% for 10 years

$227.50

Step-by-step explanation:

Lets use a modified simple interest formula to solve:

P = initial balance

r = annual interest rate

t = time

First, lets change 3.5% into a decimal:

3.5% -> -> 0.035

Now, plug in the values:

The simple interest earned after 10 years is $227.50

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

2

step-by-step explanation: