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3 years ago

What is the value of y

Mathematics

2 answers:

rjkz [21]3 years ago

8 0

Answer:

y = 20 degrees.

Step-by-step explanation:

Both base angles are 25 degrees so 5x = 25 giving x = 5.

3y + 70 = 180 - 2(25) = 130

3y = 130 - 70 = 60

y = 60/3 = 20.

wariber [46]3 years ago

3 0

Answer:

y = 10 , x = 11

Step-by-step explanation:

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Evaluate the expression for the given values. 12x+5y/3z, where x + 1/2, y = 6 and z = 3

Semmy [17]

Answer:

Step-by-step explanation:

Substitute: $\frac{\frac{12}{2} +5*6}{3*3}$

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Calculate the product or quotient: $\frac{6+30}{9}$

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3 years ago

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Answer the questions 1.find the value of x 2.find m 3.finds

zloy xaker [14]

Answer:

x = 13°

Step-by-step explanation:

m<EGF + m< FGH = m<EGH

or, 3x+6+5x-7 = 103°

or, 8x-1 = 103°

or, 8x = 103°+1°

or, x = 104°/8

or, x = 13°

Now,

m<EGF = 3x+6

= 3×13+6

= 39+6

= 45

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= 5×13-7

= 65-7

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6 0

3 years ago

The total length of pencils A, B and C is 29 cm. Pencil a is 11 cm shorter then pencil B, and pencil B is twice as long a pencil

satela [25.4K]

The length of pencil A is 5 cm

Solution:

Let the length of pencil A be "x"

Let the length of pencil B be "y"

Let the length of pencil C be "z"

The total length of pencils A, B and C is 29 cm

Therefore,

length of pencil A + length of pencil B + length of pencil C = 29

x + y + z = 29 ------------ eqn 1

Pencil A is 11 cm shorter then pencil B

x = y - 11 ------- eqn 2

Pencil B is twice as long a pencil C

y = 2z

$z = \frac{y}{2}$ ------ eqn 3

Substitute eqn 2 and eqn 3 in eqn 1

$y - 11 + y + \frac{y}{2} = 29\\\\2y + \frac{y}{2} = 29 + 11\\\\\frac{4y+y}{2} = 40\\\\5y = 80\\\\y = 16$

Substitute y = 16 in eqn 2

x = 16 - 11

x = 5

Thus length of pencil A is 5 cm

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3 years ago

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nataly862011 [7]

6/24=1/4=25%

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