Answer:
B
Step-by-step explanation:
Step-by-step explanation:
Algebra is great fun - you get to solve puzzles!
A Puzzle
What is the missing number?
− 2 = 4
OK, the answer is 6, right? Because 6 − 2 = 4. Easy stuff.
Well, in Algebra we don't use blank boxes, we use a letter (usually an x or y, but any letter is fine). So we write:
x − 2 = 4
It is really that simple. The letter (in this case an x) just means "we don't know this yet", and is often called the unknown or the variable.
And when we solve it we write:
x = 6
Answer:
Dustin sold 28 packs
Step-by-step explanation:
Answer:
90m
Step-by-step explanation:
AB = 18m
BC = AB + 9 = 18 + 9 = 27m
Perimeter = 2(AB + BC)
= 2( 18 + 27)
= 2 x 45
= 90m
