Marshall deposited $3,300 in a savings account with simple interest. six months later, the account held $3,415.50. what was the interest rate?

use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.

the simple interest is granted by the end of the year probably.If in 1/2 a year he gathered $115.50 then

115.50=3.300×r/2

r=231/3300

r=7%

hey there!

if she's saving for six months, let's divide the total number we need for the trip by six, dividing it into the amount that needs to be saved for each month.

500 ÷ 6 =

she needs to save at least this amount each month, so we should use this symbol: ≥

let x be the amount she saves each month.

your final answer is x ≥

hope this !

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