<h3>
Answer: x = 7</h3>
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Explanation:
We have n = 8 sides for this octagon.
This means the interior angles sum to 180(n-2) = 180(8-2) = 180*6 = 1080 degrees.
The tickmarks tell us that each side is the same length, so we have a regular octagon. This means that all 8 angles are the same measure. Let's say each angle is y degrees.
1 angle = y degrees
8 angles = 8y degrees
Solving 8y = 1080 leads to y = 1080/8 = 135
Each angle of this regular octagon is 135 degrees.
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Now set 16x+23 equal to 135 and solve for x
16x+23 = 135
16x+23-23 = 135-23
16x = 112
16x/16 = 112/16
x = 7
Answer:
A bag of chips costs $1
A pickle costs $1.25
Step-by-step explanation:
P + 2c = 3.25 Start with these two equations
3p + 4c = 7.25
p = -2c + 3.25 Solve for one variable
3(-2c +3.25) + 4c = 7.25 Substitute
-6c + 9.75 + 4c = 7.25
-2c = -2
c = 1
p + 2(1) = 3.25 Substitute
p + 2 = 3.25
p = 1.25
Positive odd
a (the first one)
Answer:
Step-by-step explanation:
Distribute:
Y+-3+(-2)(x)+(-2)(1)
Y+-3+-2x+-2
Combine like terms
Y+-3+-2×+2
(-2×)+(y)+(-3+-2)
-2x+y+-5