72 is 25% of
288Convert the percentage into a decimal:
Divide 72 over the decimal:
The formula for area of a circle is: πr^2
r is half the diameter.
FE is the diameter: r = 20/2 = 10
Area of circle using FE = π10^2 = π * 100 = 314 square meters.
BE is a radius:
Area = π3.5^2 = π * 12.25 = 38.465 = 38.5 square cm ( rounded to nearest tenth).
AB is a radius:
Area = π11^2 = π * 121 = 379.94 = 380 square feet ( rounded off).
EF is a diameter
r = 12/2 = 6 meters
Area = π6^2 = π * 36 = 113.04 = 113 square meters ( rounded off).
First, I would write the problem vertically because it just helps me better.
7x+2y=10
-7x+1y=-16
Then, I would add downwards.
7x+2y=10
+ -7x+1y=-16
-------------------
0x+3y=-6
Now, divide 3 from both sides.
3y=-6
--- ---
3 3
y=-2
Now, plug in -2 for y in any equation to get x.
7x+2(-2)=10
Combine like terms
7x-4=10
Add 4 to both sides
7x-4=10
+4 +4
-------------
7x=14
Divide each side by 7.
7x=14
---- ---
7 7
x=2
So your solution is
(2,-2)
To check the solution, plug in the x and y values in both equations.
7(2)+2(-2)=10
14-4=10
10=10
-7(2)-2=(-16)
-14-2=-16
-16=-16
Therefore, the solution works.
<u>You must always plug in the x and y values into both equations to check the solution because sometimes the solution will work for one and not the other.</u>
The solution must work to both equations in other for it to be right.
H - 6 (greater than or equal to) 5
It wouldn’t let me type the symbol haha
Answer:
659
Step-by-step explanation:
ones place is 9
tens + hundreds places = 11
two consecutive numbers that equal 11 are 5 and 6
hundreds is 1 + tens place so it is 6
and the tens is 5
