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3 years ago

What is 4(2x+25)=20???

Mathematics

2 answers:

Crank3 years ago

3 0

Hello!

Solve for x:

4(2x+25)=20

Distribute the 4 to the numbers inside the parenthesis.

8x + 100 = 20

Subtract 100 from both sides of the equation to get 8x by itself.

8x = -80

Divide both sides by 8

x = -10

Andru [333]3 years ago

3 0

Answer:

-10

Step-by-step explanation:

simplify both sides of the equation.

4(2x+25)=20

(4) (2x)+(4) (25)=20

8x+100=20

subtract 100 from both sides.

8x+100 _100 =20_100

8x=-80

divide both sides by 8

8x=-80

8 8

x=-10

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dlinn [17]

Answer:

42.1 cm

Step-by-step explanation:

θ = 265°

Radius (r) = 9.1 cm

Arc length of major arc GH = θ/360 × 2πr

Plug in the values into the equation

Length of arc GH = 265/360 × 2 × π × 9.1

= 42.0886149

= 42.1 cm (nearest tenth)

6 0

3 years ago

A line passes through the point (-1,-5) and has a slope of -5.

Anna71 [15]

<h3>hello!</h3>

We're given a point that the line intersects and its slope.

Let's use Point-slope:-

$\boxed{y-y1=m(x-x1)}$

y1 = -5

m=-5

x1=-1

$\boxed{y-(-5)=-5(x-(-1)}$

$\boxed{y+5=-5(x+1)}$

Convert to slope-intercept:-

$\boxed{y+5=-5x-5}$

$\boxed{y=-5x-5-5}$

Finally,

$\bigstar{\boxed{\pmb{y=-5x-10}}$

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

5 0

2 years ago

In January, Music Marathon priced all the compact discs (CD’s) at $20. In February, these same CD’s were discounted 50% and in M

skad [1K]

Answer:I think it would be $9

Step-by-step explanation:

50% of 20 is $10

10% of $10 is $1

Subtract 1 from 10, which gives you $9

3 0

3 years ago

The olympics are held every four years. In 2016, the XXXI olympiad were held in Rio de Janeiro,Brazil. Determine the year of the

Anna007 [38]

Answer:

First Olympic held in year 1896.

Step-by-step explanation:

Number of Olympiad held in Rio = XXXI = 31st

Difference of years in two consecutive Olympiads = 4 years

Number of years spent in 31 Olympiads can be calculated by,

Number of years spent = (n - 1)d

Here n = number of Olympiads held

d = difference between two consecutive Olympiads

Number of years spent till 31st Olympiads = (31 - 1)×4

= 120 years

Therefore, 1st Olympiad held in the year = 2016 - 120

= 1896

6 0

3 years ago

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Effectus [21]

Answer:

x=59 y= 81 z= 99

Step-by-step explanation:

180-(57+24)=99

y=180-99=81

x= 40+81=121

180-121=59

3 0

2 years ago