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grin007 [14]
3 years ago
15

How do you work out y?

Mathematics
2 answers:
frutty [35]3 years ago
6 0

Answer:

Step-by-step explanation:

Write the sides as proportions:

\frac{30}{18}=\frac{40}{y}

and cross multiply to get

30y = 720 so

y = 24

yan [13]3 years ago
5 0
You could cross multiply and the answer will be y=24 hope this helps:)
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Please help! Thank you
Vanyuwa [196]

Answer:

x = 82°

y = 59°

z = 39°

Step-by-step explanation:

∠x = 1/2(134° + 30°) = 82°

∠z = 180° - 59° - 82° = 39°

arc DF = 2(39°) = 78°

arc DB + arc DF = 134° + 78° = 212°

draw a diameter down from point B to the opposite side of the circle, call that point P:

arc BDP = 180°

(arc BDF) 212° - 180° = 32° (arc PF)

∠PBG = 1/2(32°) = 16°

∠DEB = 1/2(134°) = 67°

∠DBE = 180° - 59° - 67° = 54°

(∠DBE) 54° - (∠z) 39° + (∠PBG) 16° = (∠PBE) 31°

y = 90°- 31° = 59°

5 0
2 years ago
I’ll give brainliest!
Novay_Z [31]

Answer: -1 3/4

Step-by-step explanation

just add the fractions together :)

(between the -2 and -1 1/2)

5 0
2 years ago
Write an equivalent equation that does not contain fractions 2/3 x + 9 equals 3/4
AlekseyPX

Answer:

8x + 108 = 9

Step-by-step explanation:

Given

\frac{2}{3} x + 9 = \frac{3}{4}

Multiply through by the lowest common multiple of 3 and 4, that is 12 to clear the fractions.

8x + 108 = 9 ← equivalent equation with no fractions

6 0
3 years ago
Which expression is equivalent to the given expression?
Tatiana [17]

Answer:

The answer is 4a-12

Step-by-step explanation:

Hope this helped :>

3 0
2 years ago
Read 2 more answers
Solving Systems Using Inverses
Zanzabum

Answer:

12x the second -12x -16

Step-by-step explanation:

Solving systems of equations with 3 variables is very similar

7 0
2 years ago
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