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3 years ago

-1/5c+2+c=1/5(10c-20)

Mathematics

1 answer:

Andreyy893 years ago

7 0

Let's solve your equation step-by-step.

(− 1 /5 )(c)+2+c= 1 /5 (10c−20)

Step 1: Simplify both sides of the equation.

(− 1 /5 )(c)+2+c= 1 /5 (10c−20)

(− 1 /5 )(c)+2+c=( 1 /5 )(10c)+( 1 /5 )(−20) (Distribute)

−1 /5 c+2+c=2c+−4

( −1 /5 c+c)+(2)=2c−4 (Combine Like Terms)

4 /5 c+2=2c−4

Step 2: Subtract 2c from both sides.

4/5 c+2−2c=2c−4−2c

−6 /5 c+2=−4

Step 3: Subtract 2 from both sides.

−6 /5 c+2−2=−4−2

−6 /5 c=−6

Step 4: Multiply both sides by 5/(-6).

( 5 /−6 )*( −6 /5 c)=( 5 /−6 )*(−6)

c=5

Answer:

c=5

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Answer:

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Angle 2 = 55°

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Angle 6 = 40°

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Step-by-step explanation:

1) We start with angle 2

Angle 2

Angles on a straight line = 180°

Hence,

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b = 180° - 125°

b = 55°

Angle 2 = 55°

2)Angle 1

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So we use the Vertical angle theorem

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Let Angle 4 = d

Hence:

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d = 180°- 140°

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Angle 4 and Angle 5 are angles on a straight line

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Let Angle 5 = e

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e = 180° - 40°

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Using Vertical angle theorem,

Angle 4 = Angle 6

Angle 4 = 40°

Hence, Angle 6 = 40°

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Sum of angles on a straight line = 180°

Angle 9 = i

i + 65° = 180°

i = 180° - 65°

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= Angle 9 and Angle 8 are angles in a straight line

= Angle 8 = h

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h = 180° - 115°

h = 65°

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g = 180° - (65° + Angle 6)

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Step-by-step explanation:

.-point

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1-one

2-two

3-three

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6-six

7-seven

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Step-by-step explanation:

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However, in the question, it said that it's given a student is a girl.

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