Answer:1/4
Step-by-step explanation:
2/7x - 2/5x = 8
multiply both sides by 35
= 10x - 14x = 280
combine 10x and 14x
= -4x = 280
divide both sides by -4
x= -70
1. If the angles are congruent the measures are equal. That's the angle congruence postulate, usually too obvious to name.
2. The measures of complementary angles add to 90 degrees. That's the definition of complementary angles.
3. We substitute m∠2 for m∠1 so now m∠2 + m∠3 = 90 degrees.
4. The measures add to 90 degrees so now we conclude ∠2 and ∠3 are complementary.
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Why did this proof bother with the measures at all? Proof: Angles 2 and 3 are complementary. Angle 1 is congruent to Angle 3. Therefore Angles 1 and 3 are complementary.
(Distribute the 3)
6x +15 <span>≥ 2(x + 6)
(Distribute the 2)
6x + 15 </span><span>≥ 2x +12
(subtract 2x from both sides)
4x + 15 </span><span>≥ 12
(subtract 15 from both sides)
4x </span><span>≥ -3
(divide by 4x on both sides)
x </span>≥ -0.75
Hope that helped!
I hope this helps good luck