Jessica has an account with a credit union. her account earns 2.5% simple interest yearly. exactly a year and a half ago, she opened her account with $900. how much interest has she earned so far?
and show how to do it or show your work

The interest earned by Jessica after a year and a half of investment is $ 33.75.

Step-by-step explanation:

First, we must establish that simple interest is one in which interests are not added to capital. Therefore, interest in this case will always be calculated on the initial basis of $ 900.

That said, if Jessica invested $ 900 in her account, and said account grants a simple annual interest of % 2.5 per year, that account grants an interest of $ 22.5 per year (since 900 x 2.5 / 100 = 22.5). Therefore, to know the interest obtained in a year and a half, we must perform the following calculation:

22.5 (annual interest) + 22.5 / 2 (half-year interest) = X

22.5 + (22.5 / 2) = X = 33.75

Therefore, the interest obtained by Jessica after a year and a half of investment is $ 33.75.

step-by-step explanation:

d

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!