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2 years ago

Guys, please help me. Thanks all.

Mathematics

1 answer:

Sveta_85 [38]2 years ago

4 0

There is 180 degrees in a triangle. What you need to do is set up an equation and solve for x.

(7x + 10)+(x+20)+2x =180

Combine like terms:

10x + 30 = 180

Solve for x:

10x= 150; the largest angle

X=15

Plug x into the equations

7(15)+10= 115

(15) + 20 = 35

2(15)=30

Just to check your work:

115+30+35=180

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PLEASE HELP WILL MARK BRAINLIEST

MrRissso [65]

Answer:

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Step-by-step explanation:

3 0

2 years ago

The sum of the ages of Levi and Monique is 76 years. 8 years ago, Levi's age was 3 times Monique's age. How old is Levi now?

andreev551 [17]

Answer:

Levi is 53 yrs now

Step-by-step explanation:

sum = 76yrs

Levi = 3x -8

Monique = x - 8

8yrs ago

sum= 76 - 8 - 8( the two 8s are from each of the two brothers).

= 60yrs

Levi=3x

Monique=x

3x + x = 60

4x = 60

x = 15yrs

Levi = 3x

= 15 x 3

= 45 yrs(8yrs ago)

now = 45 + 8

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8 0

2 years ago

20 points !!! -3/8x-20+2x>6

Semenov [28]

Answer:

$x > 16$

Step-by-step explanation:

$- \frac{3}{8} x -20+2x>6$

Add 20 to both sides:

$- \frac{3}{8} x + 2x > 26$

Multiply 8 on both sides:

$- 3x + 16x > 208$

$13x > 208$

Divide by 13 on both sides:

$x > 16$

3 0

2 years ago

Read 2 more answers

Find the area of an equilateral triangle with side 8

Nikitich [7]

Hello! I believe the answer is 27.71.

I hope this helps!

6 0

2 years ago

Read 2 more answers

Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2+1 inches. She p

defon

Step-by-step explanation:

$perimeter \: of \: first \: pillow \: is \: \\ 4(2 {x}^{2} + 1) \\ perimeter \: of \: second \: pillow \: is \: \\ 4(4x - 7) \\ so \: we \: need \: compeletly \: 4(2 {x}^{2} + 1) + 4(4x - 7) \: ribbons. \\ 8 {x}^{2} + 4 + 16x - 28 = 8 {x}^{2} + 16x - 24 = \\ 8( {x}^{2} + 2x - 3) = 8(x + 3)(x - 1) \\ 8(3.5 + 3)(3.5 - 1) = 8(6.5)(2.5) = 8 \times 2.5 \times 6.5 = 20 \times 65 \times {10}^{ - 1} = 1300 \times {10}^{ - 1} = 130 \\ and \: we \: are \: done.$

i hope i have been useful buddy.

good luck ♥️♥️♥️♥️♥️.

6 0

2 years ago