Let
x--------> the number of quarts of paint needed for the outside
y--------> the number of quarts of paint needed for the inside
we know that
---------> equation
---------> equation
Substitute equation in equation
therefore
<u>the answer is</u>
of paint for the inside
The answer is 67.5 ft. To find the area of a triangle is BH/2= A
so...
(15)(9)
____ = 67.5
2
Answer:
80, 100
Step-by-step explanation:
180 - (40+60) =
80
That means one of the angles is 80, making an other angle 180-80 = 100 degrees
Answer:
12 hours
Step-by-step explanation:
Let the larger pipe can drain the tank in x hours
Than, time taken by smaller tank to drain the tank= (x+6) hours
If working togather, both pipe can drain the tank= 4 hours
A.T.Q
+ =
=
=
8 x +24= + 6 x
- 2 x- 24= 0
-6 x+ 4 x -24=0
x(x-6) + 4(x-6)= 0
(x-6)(x+4)=0
X= 6, X=-4 is rejected
Hence, time taken by larger tank to fill the drain= 6 hours
Hence, time taken by smaller tank to drain the tank = 6+6= 12 hours
Hence, the correct answer is 12 hours