Answer: 4
Step-by-step explanation:
x - 2y =10
x = 10 + 2y
... cancel like terms (y + 5)
= 4
This is the question I'm having trouble with in math class
1 answer:
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Answer:
Step-by-step explanation:
Hello There!
Remember: sum of interior angles of a triangle = 180
so to find x we use this equation
180 = 90 + 7x + 5 + 9x + 5 ( the little square in the triangle indicates that the angle is a right angle. right angles have a measure of 90 so that's where the 90 came from.)
now we solve for x
step 1 combine like terms
90 + 5 + 5 = 100
7x + 9x = 16x
now we have 180 = 16x + 100
step 2 subtract 100 from each side
180 - 100 = 80
100 - 100 cancels out
now we have 80 = 16x
step 3 divide each side by 16
80/16 = 5
16x/16=x
we're left with x = 5
Finally we plug in 5 into x for angle a
7(5)+5
7*5=35
35+5=40
so we can conclude that the measure of angle A is 40 degrees
The distributive property is used to get the equivalent expression
Step-by-step explanation:
The properties on mathematical expressions are used to simplify or elaborate the expressions.
One of the propoerties is distributive properties
The distributive property states that:
Let a, b and c be three integers then
a(b+c) = ab+ac
The property can be used both ways
In given expression
18+6
The distributive property is used to get the equivalent expression
Keywords: Properties
Learn more about properties at:
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