Leah invested $400 in an account paying an interest rate of 1\tfrac{1}{2}1
1 answer:
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The value of x is 1
Step-by-step explanation:
According to the problem
625 =
or, =
By the rule of index
4 = 6 - 2x
or, 2x = 6 - 4
or, 2x = 2
or, x = 1