Answer:
24
Step-by-step explanation:
- 3x - 15 = x + 33 [sides opposite congruent angles in a triangle are congruent]
- 2x - 15 = 33 [subtract x from both sides]
- 2x = 48 [add 15 to both sides]
- x = 24 [divide both sides by 2]
- BC = 24 [BC = x]
<h3>Angles sum up to:</h3><h3>( n - 2 ) × 180 = ( 5 - 2 ) × 180 = 3 × 180 = 540</h3>




Answer:
D
Step-by-step explanation:
-3 and 3 are opposites but 5 (y), is the same
Answer:
<h2>the mean<u> </u><em>a</em><em>b</em><em>s</em><em>o</em><em>l</em><em>u</em><em>t</em><em>e</em><em> </em><em>d</em><em>e</em><em>v</em><em>i</em><em>a</em><em>t</em><em>i</em><em>o</em><em>n</em><em> </em><em>v</em><em>a</em><em>l</em><em>u</em><em>e</em><em> </em><em>i</em><em>s</em><em> </em><em>5</em></h2>
Answer:
460/11, rounded to 41.8
Step-by-step explanation:
Let's say that our number is x. The first part states that we decrease 3/4 of a number by 18. Therefore, we find (3/4) of x and subtract that by 18, or (3/4)x-18. That is then equal to increasing (1/5) of x by 5, or (1/5)x+5. Our equation is then (3/4)x-18=(1/5)x + 5.
Adding 18 to both sides, we get (3/4)x = (1/5)x + 23.
Multiplying both sides by 5 and 4 (or 20 as a whole) to remove the denominators, we get that 15x=4x + 460. Subtracting both sides by 4x, we get that 11x=460, and dividing both sides by 11, our answer is rounded to 41.8 (or just 460/11)
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