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3 years ago

Two angle measures in a triangle is 81 and 62 what is the missing angle

Mathematics

2 answers:

tensa zangetsu [6.8K]3 years ago

6 0

Answer:

Step-by-step explanation:

Let the missing angle be x then .,

81 + 62 + x = 180 (being sum of angles of triangle )

143 + x = 180

x = 180 - 143

x = 37

<em>Therefore the missing angle is 37</em>

julsineya [31]3 years ago

5 0

Answer: 37

Step-by-step explanation:

Interior angles of a triangle add to 180 degrees. 81+ 62 + x = 180

143 + x =180

X = 37

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ser-zykov [4K]

Answer:

Step-by-step explanation:

answer: 4 hours

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2 years ago

Y= - x+2 Y=3x-4<br> Estimate the solution to the system of equations

IrinaVladis [17]

Answer:

$x=\frac{3}{2}\\ y=\frac{1}{2}$

Step-by-step explanation:

$y=-x+2\\y=3x-4$

Let's solve one of them for x.

$y=3x-4$

Add 4

$y+4=3x$

Divide by 3.

$x=\frac{y+4}{3}$

Now, plug the value of y in the formula, or you can plug the value of x in the other equation. I'll take this one.

$x=\frac{y+4}{3}$

$x=\frac{(-x+2)+4}{3}$

$x=\frac{-x+2+4}{3}$

$x=\frac{-x+6}{3}$

Multiply by 3 to get rid of the denominator.

$3x=-x+6$

add x

$3x+x=6$

Combine like terms;

$4x=6$

Divide by 4.

$x=\frac{6}{4}$

Simplify.

$x=\frac{3}{2}$

Now that you found the value of x, replace it in any of the equations to find y.

$y=-x+2\\y=-(\frac{3}{2})+2\\ y=-\frac{3}{2}+2$

$y=\frac{-3+2*2}{2} \\y=\frac{-3+4}{2} \\y=\frac{1}{2}$

Proof:

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$\frac{1}{2}=\frac{9-8}{2}$

$\frac{1}{2}=\frac{1}{2}$

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3 years ago

Mariana solved the equation below. Identify her ERROR and EXPLAIN what she did wrong. -3(2x-4)=-12 -6x-12=-12 -6x=0 x=0

nydimaria [60]

Answer:

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

Step-by-step explanation:

Mariana workings:

-3(2x - 4) = -12

-6x - 12 = -12

Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead

-6x = 0

x=0

Correct workings:

-3(2x - 4) = -12

-6x + 12 = - 12

-6x = -12 - 12

-6x = -24

x = -24/-6

x = 4

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3 years ago

17-1.2+ show me how you get the answer 15.8

SashulF [63]

First do 17 - 1 to get 16. Then subtract 0.2 from 16.0 to get 15.8.

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3 years ago

Rebecca is at the zoo with her family. She sees 3 times as many elephants as cheetahs. There are 4 cheetahs. How many animals di

Mekhanik [1.2K]

Hello!

There are 4 cheetahs. There are 3 times as many elephants than cheetahs. Multiply:

4 • 3 = 12

12 + 4 = 16

Rebecca saw 16 animals at the zoo.

I really hope you found this helpful! :)

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3 years ago

Two angle measures in a triangle is 81 and 62 what is the missing angle￼

Two angle measures in a triangle is 81 and 62 what is the missing angle