Answer:
IJ= 27
Step-by-step explanation:
HI+IJ=HJ
x+2x+9=4x
combine like terms
x=9
IJ=2(9)+9
18+9=27
IJ=27
Answer:
45
Step-by-step explanation:
Decreasing by 25% means that there is 25% less of last years amount or 0.25x less. It also means that this year there is only 75% of what was last year actually in the lake or 0.75x. Since last year, there were 60 fish, this means this year there is 0.75(60) = 45. This year has 45 fish.
Answer:
1/24 cm^3
Step-by-step explanation:
V = lwh
V = 1/3(1/2)(1/4)
V = 1/24 cm^3
Answer:
a S(-3) = 2(-3)(-3)+5(-3)-12
=18-15-12
=-9
b 2x2+5x-12=0
2x2+8x-3x-12=0
2x(x-4)-3(x+4)=0
(2x-3)(x+4)=0
2x-3=0
x=3/2
x=-4
sorry I couldn't answer the other question
17 and 5. 17 + 5 = 22 and 17-5 = 12