<span>Jerry is 8 years younger than Patricia, so:
(1): Jerry = Patricia - 8
Six years ago, Patricia was 3 times as old as Jerry was then, so:
(2): (Patricia - 6) = (Jerry - 6)*3
Putting equation 1 in to equation 2
(Patricia - 6) = (Patricia - 8 - 6)*3
Patricia - 6 = 3Patricia - 42
36 = 2Patricia
Patricia = 18
And so Jerry = 10</span>
the answer is 5.5
when we write root of 30 in the calculater we get 5.477225575...
so we can round this off to one decimal point
and when we do the final answer will be 5.5
<em>hope</em><em> </em><em>that</em><em> </em><em>helps</em><em> </em><em>!</em>
+3 and -18
The pair of integers are -3 and 6.
-3 + 6 = +3
-3 * 6 = -18
-14 and +24
The pair of integers are -2 and -12
-2 + -12 = -14
-2 * - 12 = +24
Answer:
see below
Step-by-step explanation:
20x^3+8x^2-30x-12
Factor out the greatest common factor 2
2 (10x^3+4x^2-15x-6)
Then factor by grouping
2 ( 10x^3+4x^2 -15x-6)
Factor out 2 x^2 from the first group and -3 from the second group
2 ( 2x^2( 5x+2) -3( 5x+2))
Factor out ( 5x+2)
2 ( 5x+2) (2x^2-3)
The 2 can go in either term to get binomials
( 10x +4) (2x^2-3)
or ( 5x+2) ( 4x^2 -6)
