I think The answer would be A
16 3/8 I so sorry if wrong glade I could help
Answer:
A = x
Step-by-step explanation:
Let us assume the unknown number is n.
Given statement " The number that is twice as much as five more than a number a."
Twice of a is = 2 times of a= 2a.
Now, it is said twice of that number of 5 more than a.
So, we can set an equation as
<h3>2a = a +5.</h3>
Subtracting a from both sides, we get
2a - a = a-a +5
a = 5.
<h3>Therefore, unknown number a is 5.</h3>
9 feet
Use Pythagorean theorem:
Leg: 12
Hypotenuse: 15
12^2 + x^2 = 15^2
144 + x^2 = 225
x^2 = 81
x = 9