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2 years ago

Find the values of x work 10% of my grade

Mathematics

2 answers:

Ostrovityanka [42]2 years ago

6 0

Answer:

x = 35

Step-by-step explanation:

1. Add all angles

$115+(x+36)+24+(2x+10)+2x$

= $5x+185$

2. Match 360 and fix

$5x+185=360$

$5x=360-185$

$5x=175$

$x=175/5$

$x=35$

Hope this helps

liraira [26]2 years ago

5 0

Answer:

$\boxed{\sf x = 35^o}$

Step-by-step explanation:

Let's find the value of x :-

$\sf 115 + x + 36 + 24 + 2x + 10 + 2x = 360^o$

Add the numbers.

$\sf 185 + x + 2x + 2x = 360$

Combine like terms.

$\sf 5x + 185 = 360$

Subtract 185 from both sides.

$\sf 5x = 175$

Divide both sides by 5.

$\sf x = 35^o$

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In ABC, if CB AC≅ , m∠A = 3x + 18, m∠B = 7x – 58, and m∠C = 2x – 8, find x and the measure of each angle.

lesya692 [45]

9514 1404 393

Answer:

x = 19

A = 30°

B = C = 75°

Step-by-step explanation:

In an isosceles triangle, the angles opposite the congruent sides have the same measures.

A = B

3x +18 = 7x -58

76 = 4x . . . . . . . . add 58-4x

19 = x . . . . . . . . . divide by 4

Then the equal angles measure ...

A = B = 3(19) +18 = 75

C = 2(19) -8 = 30

Angles A, B, C measure 75°, 75°, 30°, respectively.

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Alternate solution

The sum of angles in a triangle is 180°, so you could write ...

(3x +18) +(7x -58) +(2x -8) = 180

12x = 228 . . . . . add 48

x = 19 . . . . . divide by 12

6 0

3 years ago

Over the last 3 evenings, Keisha received a total of 81 phone calls at the call center. The first evening, she received 6 few

tensa zangetsu [6.8K]

Answer:

First: 15

Second: 21

Third: 45

Step-by-step explanation:

In order to create the equation we need to represent the evenings with an alebraic term, in thsi case we are going to represent the second evening with an X

Second evening:x

The first night she got 6 fewer calls than the second: Second-6=x-6

The third night she received 3 times the first: 3(first night)=3(x-6)

The equation is First Night plus second night plus third night equals 81.

$First+second+third=81\\x+(x-7)+3(x-6)=81\\x+x-7+3x-18=81\\5x=81+21+6\\5x=105\\x=\frac{105}{5} \\x=21$

So the first evening he received 15 calls, the second he received 21 and the third one he received 45.

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Answer:

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Step-by-step explanation:

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where x is the value, $\overline {x}$ is the mean, and s is the standard deviation.

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Substitute the values into the formula.

$z=\frac{83-72}{5}$

Solve the numerator.

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Divide.

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allochka39001 [22]

Answer:

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3 years ago

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