All categories

3 years ago

Calculate the value of x

Mathematics

2 answers:

OleMash [197]3 years ago

8 0

Answer:

12x=180 -30

x= 150/12

x= 12.5°

Marrrta [24]3 years ago

8 0

Answer:

x = 12.5

Step-by-step explanation:

The 3 angles lie on a straight line and so sum to 180°, that is

x + 10 + 10x + x + 20 = 180, simplify

12x + 30 = 180 ( subtract 30 from both sides )

12x = 150 ( divide both sides by 12 )

x = 12.5

You might be interested in

= Initial Knowledge Check Rewrite the expression by factoring out (y+9). 3y^2 (y + 9) + 7(y+9)

alex41 [277]

Answer:

$3y {}^{2} (y + 9) + 7(y + 9) \\ = (y + 9)(3y { }^{2} + 7)$

6 0

3 years ago

A cylinder has a base diameter of 14m and a height of 10m. What is its volume in cubic m, to the nearest tenths place?

VARVARA [1.3K]

Answer:

1539 cubic meters

Step-by-step explanation:

Hello, I can help you with this

to solve need we will need these two equations

Step one

Remember

area of a circle

$Area=\pi *\frac{diameter^{2} }{4}\\$

Also, the volume of the cylinder

Volume= area of the circle * height

$Volume=\pi *\frac{diameter^{2} }{4} *height\\$

Step 2

put the values into the equation

Let

diameter= 14 m

height = 10 m

$Volume=\pi *\frac{diameter^{2} }{4} *height\\\\Volume=\pi *\frac{(14\ m)^{2} }{4} *10\ m \\\\Volume=\pi *49\ m^{2} *10\ m\\Volume=1539.38\ cubic\ meters$

I hope it helps,have a great day.

3 0

3 years ago

What’s the answer for y= (x-2)^2 +2 {x<4.5}

stealth61 [152]

Answer:

x<4.5

Step-by-step explanation:

y =(x-2)^2 +2 {x<4.5}

add the power and then divide by 2 you get 4.5

8 0

3 years ago

a box holds red pens and blue pens the ratio of red pens to blue pens is 1 to 4 The box holds 12 more blue pens than red pens wh

Genrish500 [490]

Answer:

20 pens

Step-by-step explanation:

if there is 1 red pen for every 4 blue pens

then

4 red pens would have 16 blue pens with it. makes a total of 20 pens, with 12 more blue pens than red pens

7 0

3 years ago

A group of friends would like to play bowling. They would have to pay $4.45 for a game or pay $28.95 per hour. Under which circu

andrew11 [14]

They would have to pay the hourly cost if they played around 7 games because 7 games would equal to the cost of one hour.

6 0

3 years ago