S - the number of the t-shirts;
h - the number of hats:
The system of equations:
s + h = 23
10 s + 12 h = 246
--------------------------
s = 23 - h
10 * ( 23 - h ) + 12 h = 246
230 - 10 h + 12 h = 246
2 h = 246 - 230
2 h = 16
h = 16 : 2
h = 8
s = 23 - 8
s = 15
Answer: The basketball team sold 15 t-shirts and 8 hats.
Answer:
its c , hope that helps on time
Step-by-step explanation:
X=4
26x - 4 = 100
+4 +4
26x = 104
x = 104/26
x=4
Answer:
21/10
Step-by-step explanation:
3 3/5= 18/5
1 1/2 = 3/2
18/5=36/10
3/2 = 15/10
(36-15)/10 = 21/10
the angle for a straight line is 180°. since the question gave you 100°, this means the other angle to complete the straight line is 80°. you know, 100°- 80°. then, the type of angle is corresponding angle. meaning ; the 80° angle is the same as (x+10)°. hence, to find the value of x, form an equation.
Solution:
(x + 10)° = 80°
x = 80° - 10°
x = 70°