Answer:
48 might be
Step-by-step explanation:
i hope is right
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>
Answer:
Not sure if this is right, but I hope it helps. Please see attached pic
Step-by-step explanation:
-- The area of the long skinny piece on top is (6 x 33) = 198
-- The length of the dotted line between the top and bottom pieces is (33-21) = 12
-- The area of the bottom piece is (12 x 15) = 180
-- The area of the whole thing is (198 + 180) = 378
-- The perimeter of the whole thing is (33 + 6 + 21 + 15 + 12 + 15 + 6) = 108