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sesenic [268]
3 years ago
9

Find the value of x. 3x +7 D 2x + 7 3x 16

Mathematics
2 answers:
Mashcka [7]3 years ago
7 0

Answer:

sum of interior angle of a triangle is 180 degree

so,

3x +7 + 2x+7 +3x+6 = 180

8x + 20 = 180

8x = 180 - 20

8x = 160

x = 160/ 8

x = 20

May it will help you

evablogger [386]3 years ago
5 0

Answer:

x = 20

Step-by-step explanation:

According to angle sum property of a triangle , sum of all the angles in a triangle is equal to 180°.

So,

(3x + 7) + (2x + 7) + (3x + 6) = 180

=  > 8x + 20 = 180

=  > 8x = 180 - 20 = 160

=  > x =  \frac{160}{8}  = 20

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8 0
3 years ago
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Solve for x. 3x + 5 = 23​
Lunna [17]

[|] Answer [|]

\boxed{X \ = \ 6}

[|] Explanation [|]

3x + 5 = 23

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_________

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Divide Both Sides By 3:

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\boxed{[|] \ Eclipsed \ [|]}

8 0
4 years ago
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¿Cuál es el valor de la siguiente expresión? (-12) - (+8)
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Answer:

huh? i really dont understand

Step-by-step explanation:

6 0
3 years ago
1. Three pounds of M&amp;M’s cost $7.50. At this rate, what is the cost of 7 pounds?
Romashka [77]

Answer:

1. 17.50

2. 6

Step-by-step explanation:

1A: First you have to divide the cost by the three pounds to get the price per pound. Now that you have that answer you multiply it by 7 to get the price of 7 pounds.

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Hope this helps you ^^

8 0
3 years ago
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