Answer:
m∠b=20°
m∠c=160°
Step-by-step explanation:
∠c and the 160° angle are vertical, so they are congruent.
m∠c=160°
∠c and ∠b are supplementary, so their sum is 180°.
So, m∠b=20°.
What is a number multiplied by itself called?
2 answers:
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<span>
Solving:
1)
-58 - 6x = 42 + 4x
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
<span>- 6x - 4x = 42 + 58
- 10x = 100 simplify by (-1)
10x = - 100
</span>
<span>
2)
37 + 5x = -2x - 33
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
<span>5x + 2x = - 33 - 37
7x = - 70
</span>
<span>
3)
27 - 9x = -6x - 39
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
- 9x + 6x = - 39 - 27
- 3x = - 66 simplify by (-1)
3x = 66
Solving:
1)
-58 - 6x = 42 + 4x
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
<span>- 6x - 4x = 42 + 58
- 10x = 100 simplify by (-1)
10x = - 100
</span>
2)
37 + 5x = -2x - 33
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
<span>5x + 2x = - 33 - 37
7x = - 70
</span>
<span>
3)
27 - 9x = -6x - 39
</span>Pass the numbers with letter to the left and the numbers without letter to the right, changing the signal as they change sides.
- 9x + 6x = - 39 - 27
- 3x = - 66 simplify by (-1)
3x = 66
Answer:
Cup A
Step-by-step explanation:
<u>Cup A</u>
Salt: Water = 3:22
Expressed as a percentage
Proportion of Salt =13.6%
<u>Cup B</u>
Salt: Water = 1:8
Expressed as a percentage
Proportion of Salt =12.5%
<u>Cup C</u>
Proportion of Salt = 12.75%
Therefore, Cup A has the greatest proportion of salt.