Answer:
6.75
Step-by-step explanation:
use the proportion:
1) 20:9=15:x
2) 20x=135
3) x=6.75
Answer:
Step-by-step explanation:
18 - 7p = ?
Answer:
THE TOTAL INTEREST AFTER A YEAR IS 3,385 . HOW MUCH WAS INVESTED AT EACH RATE? ... Amount invested at 13% is 27000-x; amount of int is ... One way we can do that is to solve our first equation for one of the unknowns in ... invested was $27,000, the remaining $12,500 must be the amount invested at 12%.
Step-by-step explanation:
Answer:
2x^2-8x+13
Step-by-step explanation:
f(x)=2x^2+5
f(x-2)=2(x-2)^2+5
f(x-2)=2(x-2)(x-2)+5
f(x-2)=2(x^2-2x-2x+4)+5
f(x-2)=2(x^2-4x+4)+5
f(x-2)=2x^2-8x+8+5
f(x-2)=2x^2-8x+13
