Answer:
the answer is 12
Step-by-step explanation:
Simplify both sides of the equation.
12(b−10)+2b=25
(12)(b)+(12)(−10)+2b=25(Distribute)
12b+−5+2b=25
(12b+2b)+(−5)=25 (Combine Like Terms)
52b+−5=25
52b−5=25
add 5 to both sides.
52b−5+5=25+5
52b=30
multiply both sides by 2/5.
(25)*(52b)=(25)*(30)
b=12
I think I’ve done this right maybe not but.
9). -0.35
I don’t know 10
Fountain
A = pi * 10^2
A = 100pi
Garden
A = pi * 200^2
A = 40,000pi
40,000pi - 100pi = 39,900 m^2
Answer:
46 units
Step-by-step explanation:
The diagonals of a rectangle bisect each other, which means that in this case, AE = EC. So, set the two expressions equal to each other and solve for x:
6x - 55 = 3x - 16
3x = 39
x = 13
Now, another property of rectangle diagonals is that they're the same length, which means AC = DB. So, let's just find the length of AC:
AC = AE + EC = (6 * 13 - 55) + (3 * 13 - 16) = 23 + 23 = 46
Thus, since AC = DB, we know that DB = 46 units.
Hope this helps!