Answer: simple interest rate is 19%
Step-by-step explanation:
The formula for determining simple interest is expressed as
I = PRT/100
Where
I represents interest paid on the amount invested.
P represents the principal or amount invested.
R represents interest rate
T represents the duration of the investment in years.
From the information given,
P = 90000
I = 400000 - 90000 = $310000
T = 18 years
Therefore,
310000 = (90000 × R × 18)/100
310000 = 16200R
R = 310000/16200
R = 19%
If he made $640 last year, and this year he made 15% more than that, we set up the problem like this:
640 * .15 = 96
640 + 96 = 736
This year, he made $736
Answer: 20
Step-by-step explanation:
Assuming your question is:
Z² - X² - XY X = -2, Y = 3, Z = -4
Substitute values
(-4)² - (-2)² - {(-2)(3)}
{(-4)(-4)} - {(-2)(-2)} - (-6)
(16) - (4) + 6
16 - 4 + 6
20
Answer:
D
Step-by-step explanation:
i did it on khan
