Answer:
x = 10
Step-by-step explanation:
The sum of the interior angles of a quadrilateral = 360°
Sum the angles and equate to 360
9x + 15 + 85 + 90 + 80 = 360, that is
9x + 270 = 360 ( subtract 270 from both sides )
9x = 90 ( divide both sides by 9 )
x = 10
X1-y1/x2-y2.
-2-4/2-5.
-6/-3
answer: 2
Answer:
10 + 7z
Step-by-step explanation:
the product of z and 7 is
7z
adding 10 to the expression would be
10 + 7z
Answer:
x= -5
Step-by-step explanation:
-3x + 25 = 40
you want to put x terms on one side, numbers on another side
subtract 25 on both sides
-3x = 15
divide both sides by -3
x= -5
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Answer:
1400
Step-by-step explanation:
The original price is represented by 100%
A saving of 40% represents (100 - 40) = 60% of the original price
Divide the reduced price by 60 to find 1%, then multiply by 100 for original price
original price =
× 100 = 1400