Answer:
x = 3
y = 1
Step-by-step explanation:
9x - y = 26 ---------------(I)
9x + y = 28 ---------------(II)
9x - y = 26
9x = 26 + y
Substitute 9x = 26 + y in equation (II)
26 + y + y = 28 {add like terms}
26 + 2y = 28 {subtract 26 from both sides}
2y = 28 - 26
2y = 2 {divide both sides by 2}
y = 2/2
y = 1
Substitute y =1 in equation (I)
9x - 1 = 26
9x = 26 + 1
9x = 27
x = 27/9
x = 3
x = 3
y = 1
B
because the angles are supplementary meaning they add up to 180
Y is 13 when you solve the problem
Greetings!
"<span>The circumference of a circle is 12 inches. What is the radius?"...
We can use the formula to find the circumference of circle to solve this:
</span>

<span>
Input the information we know:
</span>

<span>
Solve for
r, using the properties of equality:
Simplify.
</span>

<span>Divide both sides by
6.28</span>

<span>
Simplify.
</span>

The radius is
1.91cm long.
Hope this helps.
-Benjamin
Answer:
x=4
Step-by-step explanation:
4^2=16
16+5=21