Answer:
∠B = 60°
Step-by-step explanation:
They are supplementary angles, which means they add up to 180°.
∠B + ∠A = 180
? + 120 = 180
? = 180 - 120
? = 60°
Answer:
The minimum number of bicycles that must be produced and sold to break even = 20
Explanation:
The profit generated by producing and selling n bicycles per week is given by the formula:

To get the minimum number of bicycles that must be produced and sold to break even, let P(n) = 0 (Since break even means no profit is made)

Solve the resulting quadratic equation above

This means that, to break even, either 60 or 20 bicycles must be produced and sold
The minimum number of bicycles that must be produced and sold to break even = 20
All you have to do is divide the numerator and the denominator by 3 and you get your answer which is 1/6
Answer:
1
2
⋅
+
1
=
−
1
9
Step-by-step explanation:
Combine multiplied terms into a single fraction
1
2
+
1
=
−
1
9
1
2
+
1
=
−
1
9
=
−
4
0
.10x + .05y = 4.50
x + y = 30
Is the formula