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Bumek [7]
3 years ago
10

Which angles are complementary to

Mathematics
1 answer:
Molodets [167]3 years ago
8 0
Complementary angles add up to 90°

∠BDC + ∠CDA = 90°

Answer: ∠BDC
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Tom opened a lemonade stand to earn money to buy a new bike for $200. He sells a cup of lemonade for $1.00. On the first day he
tia_tia [17]

1 - 8

2 - 16

3 - 32

x - +200

Each lemonade has a profit of $1, so the number of cups of lemonade he sells is the same as the amount of dollars he has. You just need to add each previous day's total to the next day's, doubling the amount of cups from the previous day's for each new day.

4 - (32 x 2 = ) 64

8 + 16 + 32 + 64 = 120. We need at least $80 dollars more, so we continue.

5 - (64 x 2 = ) 128

120 + 128 = $248.00 That's more than enough, so Tom will have enough money for his bike after the fifth day of selling lemonade.

6 0
3 years ago
GREATEST COMMON FACTOR OF 6 OF 27 AND 30
jonny [76]
Answer is 3.

3,6
3,6,9,12,15,18,21,24,27
3,6,9,12,15,18,21,24,27,30
8 0
3 years ago
Read 2 more answers
(question 31) if arc mBC =120 and arc mAD =50 whatis the measure of angle DYC
g100num [7]
<h3>Answer:  D) 95</h3>

===============================================================

Explanation:

First, let's calculate angle BYC. This is the angle formed by the chords that subtend the arcs mentioned. This angle faces or is aimed toward the direction of the arcs. To find this angle, we'll average the arc measures like so:

angle BYC = (arcAD + arcBC)/2

angle BYC = (50+120)/2

angle BYC = 170/2

angle BYC = 85 degrees

Then we'll use the idea that angles BYC and DYC are supplementary (aka they form a straight 180 degree angle)

angleBYC + angleDYC = 180

angleDYC = 180 - angleBYC

angleDYC = 180 - 85

angleDYC = 95 degrees

which is why the answer is choice D.

5 0
3 years ago
Of the 220 tickets available for a school play,45% have been sold. What is the number of tickets that have sold?(pls help due ve
Firdavs [7]
My mind is pretty foggy on this but I know you have to set the up the equation like ?/220 = 45/100 and you have to multiply or divide something, I’m not really sure. I don’t remember anymore lol.
6 0
3 years ago
3/5x+1/4t=-1/2 in standard form
CaHeK987 [17]

Answer:

\frac{3}{5}x+\frac{1}{4}t+\frac{1}{2}=0

Step-by-step explanation:

Write in standard form.

5 0
3 years ago
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