Answer:
Dolphin is 3 feet above the surface of the water.
Step-by-step explanation:
Dolphin is 30 feet below the surface of the water, then its position on the vertical number line is -30.
- She rises 23 feet - add 23,
- sinks 17 feet - subtract 17,
- and finally rises another 27 feet - add 27.
Thus,

Dolphin is 3 feet above the surface of the water.
Answer:
30/x=100/40
(30/x)*x=(100/40)*x - you multiply both sides of the equation by x
30=2.5*x - you divide both sides of the equation by (2.5) to get x
30/2.5=x
12=x
x=12
now we have:
40% of 30=12
Step-by-step explanation:
Trapezoid: (a) 1
(b) none
Square: (a) 4
(b) 90°
Equilateral Triangle: (a) 3
(b) 120°
Kite: (a) 1
(b) none
Isosceles Triangle: (a) 1
(b) none
Rhombus: (a) none
(b) 180°
Answer:
I'm not sure if you meant to capitalize the first "x". If you did, then the correct answer is:
Xx+4X+5x+20
If you didn't, the answer is:
x^2+5x+20
Work:
1) X*x=Xx
2) X*4=4X
3) 5*x=5x
4) 5*4=20
43 divided by n is equal to 42