Answer:
110
Step-by-step explanation:
x = adult's tickets
y = student's tickets
{x + y = 250
{5x + 7y = 1530
{- 5x - 5y = - 1250
{5x + 7y = 1530
--------------------------
2y = 280
y = 280/2
y = 140
x + y = 250
x + 140 = 250
x = 250 - 140
x = 110
I hope I've helped you.
Answer: 3 to the power of 3 halves is equal to Square root of 27.
or
3^3/2 is equal to √27
Step-by-step explanation:
3^3/2 = 5.196152423
∛9 = 2.080083823
√9 = 3
∛27 = 3
√27 = 5.196152423
Answer:
Length :
12
feet
Width :
10
feet
Explanation:
Let the length of the garden be
x
feet.
Therefore, the breadth or width of the garden is
(
x
−
2
)
feet.
So, According to the problem,
x
(
x
−
2
)
=
120
⇒
x
2
−
2
x
=
120
⇒
x
2
−
2
x
−
120
=
0
[Transposing 120 to the L.H.S]
⇒
x
2
+
10
x
−
12
x
−
120
=
0
[Breaking
−
2
x
as
10
x
−
12
x
]
⇒
x
(
x
+
10
)
−
12
(
x
+
10
)
=
0
[Taking the like terms aside]
⇒
(
x
+
10
)
(
x
−
12
)
=
0
[Completing the factorisation]
We know, When two real quantities are multiplied and the product is zero, then one of them or both of them should be zero.
So, Either
x
+
10
=
0
or
x
−
12
=
0
So,
x
=
−
10
or
12
As
x
indicates length,
x
can't be negative.
So,
x
=
12
.
So, The length of the garden is
12
feet and the width of the garden is
(
12
−
2
)
feet =
10
feet.
Step-by-step explanation:
plz mark me as a brainliest
Answer:
i think thats right
Step-by-step explanation:
A=pir^2
c=2pir
a=pir^2=16
pir^2=16
divide both sides by pi or about 3.141592
r^2=5.0929581789406507446042804279205
sqrt both sides
r=2.2567583341910251477923178062431
circumference=2pir
circumference=2pi(2.2567583341910251477923178062431)
c=4.5135166683820502955846356124862pi
about 4.5pi square cm
