I’m not sure about this one but you previous ques was solved
(X+40) (3x-20)
Just multiply them first
3x^2 - 20x + 120x - 800
3x^2 - 100x - 800
Answer:
help calll me daddy
Step-by-step explanation:
The anwser is ten because the number i saw is 14 estimate is ten.
-5...5,that means all types of numbers -5 to 5
We know that
Interest= PNR/ 100.
where P is the principal
R is the rate of Interest
N is the no of years the sum has been invested for.
Since N is not given we assume that to be 1
Therefore we have
10x /100 + (7000 -x)*7/100= 580
Multiplying both sides by 100
10x+(7000-x)*7 = 58000
simplifying
10x+ 49000 - 7x = 58000
3x = 58000-49000
3x = 9000
x= 3000
therefore the sum of money invested at 7% = 7000 - 3000 = 4000