Mathematics, 08.12.2020 20:20 oopfloop2

Using the triangle below find the value of x and then find all of the angle measures.

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A triangle will always be a total of 180% so to get that from there you would make the equation 2x+x+x-20=180 and using the combine like terms that gets you 4x-20=180. And 20 to both sides to get x alone and you’ll get 4x=200. Divide both sides by 4 and you’ll get x=50. To check just substitute back in so 50-20=30 2(50)=100 and x=50. Then make the equation 30+100+50 and if it equals 180 then you’re good.

Answer from: kayladianemmp6qhfa

x=50

top corner =2x =100

bottom left =x =50

bottom right =x-20 =30

Step-by-step explanation:

all angles of a triangle add up to 180° so:

(x-20) + (2x) + x = 180

then remove redundant parentheses

x-20 + 2x + x = 180

add like terms

2 − 20 + 2 =180

Rearrange terms

2+2−20=180

add 20 to both sides of the equation

2+2−20 +20=180+20

simplify

2+2=200

add

4x=200

divide 4 to both sides of the equation

4x/4=200/4

simplify

x=50

Your welcome :)

Hope this helps!

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Answer from: Quest

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

Answer from: Quest

answer:

total cost for tiles and paints is $924.

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

$\text{area of walls and ceiling}=(2*40*15)+(2*3*15)+(40*3)$

$\text{area of walls and ceiling}=1200+90+120$

$\text{area of walls and ceiling}=1410$

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

$\text{ the total painting cost}=10*(\frac{1410}{25})$

$\text{ the total painting cost}=10*56.4=564$

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

$\text{area of floor} = 40*3\text{ square meters}$

$\text{area of floor} =120\text{ square meters}$

given: 1m squared floor tiles costs $3. so,

$\text{total cost for tiles} = 3*120 = 360$

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

$\text{combined total cost}= 564+360 = 924$

therefore, the combined total cost of tiles and paint is $924.

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Using the triangle below find the value of x and then find all of the angle measures.
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