11 by 16
Explanation:
Set up two equations
2
x
+
2
y
=
54
x
×
y
=
176
Solving the first equation for x
2
x
+
2
y
−
2
y
=
54
−
2
y
this gives
2
x
=
54
−
2
y
Divide both sides by 2
(
2
x
2
)
=
54
−
2
y
2
This gives.
x
=
27
−
y
putting this value into the second equation gives.
(
27
−
y
)
×
y
=
176
multiplying across the parenthesis gives
27
y
−
y
2
=
176
subtracting 176 from both sides gives
is
27
y
−
y
2
−
176
=
0
multiplying by negative one gives
−
27
y
+
y
2
+
176
=
0
factoring this into y gives
(
y
−
11
)
×
(
y
−
16
)
=
0
Solving for both y's gives
y
=
11
,
y
=
16
Hello,
x = The number of cans of paint.
y = number of brushes.
25x + 12.75y = 327
Thanks,
Its 8$ per hour or 8/1 hour because if you line it up every hour it increases by $8
A rational number is any number that can be written as a ratio or a fraction.
So 5/9 is a rational number. So basically that eliminates 2, 3, and 4.
And we are left with 1. as our answer choice which is Rational and real.
