Answer:
3) 174°15'18"
4) 34.859722...(repeating)°
5) 434°, -286°
Step-by-step explanation:
There are 60 minutes in a degree, and 60 seconds in a minute.
3) To find minutes, multiply fractional degrees by 60:
.255° = 0.255°×(60'/1°) = 15.3'
To find seconds, multiply fractional minutes by 60:
0.3' = 0.3'×(60"/1') = 18"
Then the whole angle is ...
174.255° = 174° 15' 18"
__
4) The conversion works the other way, too.
34° 51' 35" = 34° +51(1/60)° +35(1/3600)° = (34 619/720)°
= 34.8597222...° (a repeating decimal)
__
5) Add or subtract multiples of 360° to get co-terminal angles.
74° +360° = 434°
74° -360° = -286°
Answer: $$5$$ movies
Step-by-step explanation: Given: A movie club, one time fee
=
$
25
, movies
=
$
7
2nd club,
$
0
fee, movies
=
$
12
Cost equations for each club:
club 1:
C
1
=
25
+
7
M
club 2:
C
2
=
12
M
For the clubs cost to be equal:
C
1
=
C
2
25
+
7
M
=
12
M
Subtract
7
M
from both sides:
25
=
5
M
Divide by
5
:
M
=
25
5
=
5
5
movies
CHECK:
C
1
=
25
+
7
⋅
5
=
25
+
35
=
$
60
C
2
=
12
⋅
5
=
$
60
Answer:
C =3.33x
Step-by-step explanation:
The cost of 1 barrette is
9.99/3 sine it is 9.99 for 3 barrettes
or 3.33 per barrette
We want x barrettes
or 3.33*x
C is the total cost
C =3.33x
Answer:
32 squared ft
Step-by-step explanation:
Answer:
8x+6y=48
x+y=7
multiply bottom equation by 6:
8x+6y=48
6x+6y=42
subtract equations:
2x=6
divide 6 by 2:
x=3
therefore:
y=4