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Serjik [45]
2 years ago
9

X over 2 +2= 15 two step equations

Mathematics
2 answers:
BartSMP [9]2 years ago
7 0

Answer:

\sf \:  \longmapsto\frac{x}{6}  + 2 = 16

\sf \:  \longmapsto\frac{x}{6}  = 16 - 2

\sf \: \longmapsto \frac{x}{6}  = 14

\sf \: \longmapsto \: x = 14 \times 6

\sf \:  \longmapsto \: x = 84

Step-by-step explanation:

\fbox {\fbox {\fbox {\fbox{ \pink{HeavenMistress}}}}}

Fed [463]2 years ago
3 0

Answer:

\boxed{\boxed{\sf x=84}}

Step-by-step explanation:

\sf \cfrac{x}{6} +2=16

<u>Multiply both sides of the equation by 6:</u>

\sf x+12=96

<u>Subtract 12 from both sides:</u>

\sf x=96-12

<u>Subtract 12 from 96:</u>

\sf x=84

<u>_________________________________</u>

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Answer:

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8 0
3 years ago
Find all the missing elements:
pentagon [3]

Answer:

B = 34.2°

C = 58.2° or 121.8°

c= 10.6

Step-by-step explanation:

Step 1

Finding c

We calculate c using Pythagoras Theorem

c²= a² + b²

c = √a² + b²

a= 8, b = 7

c = √8² + 7²

c = √64 + 49

c = √(113)

c = 10.630145813

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Step 2

Find B

We solve this using Sine rule

a/sin A = b/sin B

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a = 8

b = 7

Hence,

8/sin 40° = 7/sin B

8 × sin B = sin 40° × 7

sin B = sin 40° × 7/8

B = arc sin (sin 40° × 7/8)

B ≈34.22465°

Approximately = 34.2°

Step 3

We find C

Find B

We solve this using Sine rule

b/sin B = c/sin C

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c = 10.6

C = ?

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sin C = sin 34.2° × 10.6/7

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C = arcsin(0.85)

C= 58.211669383

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