Answer:
<h2>b = 60</h2>
Step-by-step explanation:
We know: The sum of measures of angles in a triangle is equal to 180°.
Therefore we have the equation:
b° + 80° + 40° = 180° <em>combine like terms</em>
b° + 120° = 180° <em>subtract 120° from both sides</em>
b° + 120° - 120° = 180° - 120°
b° = 60°
18. is 50% and that is the correct answer
48=4% loaded on truck and they have 96% left to load
So set up a proportion and it should look like this
48 over x = 4 over 100
48/x=4/100
Do cross multiplication 100×48= 4,800÷ 4 = 1,200 total on truck
