PLZ HELP ITS DUR RIGHT NOW AND PLZ ANSWER TRUTHFULLY

Mathematics

1 answer:

yuradex [85]3 years ago

5 0

Answer:

x=141

Step-by-step explanation:

(n-2)•180 = Sum of all the interior angles

n = # of sides

(7-2)•180

5•180

900= Sum of all the interior angles

Add all the angles and equal them to 900

125+122+131+x+7+x+107+x-15=900

Add all the numbers up first on the left side

477+3x=900

3x=423

x=141

You might be interested in

How many pounds are in 3/4 of a ton?

alexandr402 [8]

The answer is 1,500 pounds are in 3/4 of a ton.
Hope this helps.

7 0

4 years ago

Read 2 more answers

I need help with a prople on my math for 8 grade it is y = -8x - 2

Nadusha1986 [10]

Answer:

M=8 Y=-2

Step-by-step explanation:

this is the slope and b

8 0

3 years ago

Ronny, Celina, Jack, and Michelle together placed a total of 20 brownies on a tray. Ronny placed 0.15 of the brownies, Celina pl

Marat540 [252]

To answer the question above, evaluate the number of cookies each of them placed on a tray. The calculations are shown below,

Ronny C1 = 0.15 x 20 = 3
Celina C2 = 3
Jack C3 = 0.30 x 20 = 6
Michelle C4 = 20 - (3 + 3 + 6) = 8

From the calculation above, <em>Michelle</em> placed the most number of brownies on the tray.

3 0

4 years ago

Read 2 more answers

Step 3: 2x > 10 Step 4: x > 5 What property justifies the work between step 3 and step 4? A. division property of inequali

BigorU [14]

Answer:

A. Division property of inequality.

Step-by-step explanation:

Let be $2\cdot x > 10$ , we proceed to show the appropriate procedure to step 4:

1) $2\cdot x >10$ Given

2) $x > 5$ Compatibility with multiplication/Existence of multiplicative inverse/Associative property/Modulative property/Result. (Division property of inequality)