3 years ago

Pleaseee help

1 answer:

7 0

Is an alternate exterior cause the numbers are outside

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docker41 [41]

Answer:

x = 21.7°

Step-by-step explanation:

We know that the sum of the three angles in triangle add up to a total of 180°.

So adding the given expressions of angles and putting them equal to 180 to find the value of x:

$(3x-5) + (2x+20) +(4x-30)= 180$

$4x+3x+2x+20-30-5=180$

$9x=180+30-20+5$

$9x=195$

$x=\frac{195}{9}$

$x=21.7$

Therefore, the value of x in a triangle with angles 3x-5, 2x+20, 4x-30 is equal to 21.7°.

4 0

3 years ago

Ilya [14]

3x+2=11
(you need to isolate x, so step 1 is to subtract 2 from both sides.)
3x+2-2=11-2
3x=9
(then divide both sides by 3)
3x/3=9/3
x=3

3 0

3 years ago

nordsb [41]

6.3 minutes: 6 minutes and 20 seconds, I believe.

7 0

4 years ago

podryga [215]

I believe the answer would be 24 for this equation

3 0

3 years ago

Artyom0805 [142]

$6.60 because 6.00 + 0.60 = 6.60

3 0

3 years ago