1. julia deposited $250 in a savings account that earns 2.7% simple interest. how much interest has julia earned by the end of the first year?
$6.75
$92.59
$256.75
$675.00
2. armand deposited $389.42 in a savings account that earns 3.2% simple interest. what is armand’s account balance after seven years?
$87.23
$401.88
$476.65
$872.30
3. andy deposited $1,567.12 in a savings account that earns 1.9% simple interest. what will andy’s account balance be in nine months?
$1,567.12
$1,589.45
$1,596.90
$1,835.10

Step-by-step explanation:

Simple interest formula is :

t is always in years here.

1.

p = 250

r = 2.7% or 0.027

t = 1

Simple interest earned = = $6.75

2.

p = 389.42

r = 3.2% or 0.032

t = 7

Simple interest earned = = $87.23

Amount after 7 years will be = = $476.65

3.

p = 1567.12

r = 1.9% or 0.019

t =

Simple interest earned = = $22.33

Account balance after 9 months = = $1589.45

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it