1. C. Concave pentagon
2. A. 1620°
b/c (11 - 2) × 180 = 1620
3. B. 165°
b/c (24 - 2) × 180 ÷ 24 = 165
4. A. 160°
b/c (18 - 2) × 180 ÷ 18 = 160
I believe you’re correct.
y = 3x - 6
Answer:
about 7 units
Step-by-step explanation:
10
So from what I understand, you would multiply 10m by 5m for the width to get 50m squared, and multiply the 50 by 2 to get 100m for both sides of the width for the pool. Next the length. Multiply 25m by 2.5m to get 62.5m squared. Once again, mutiply it by 2 for both side lengths of the pool to get 125m. Last, add 125m and 100m to get 225m for the concrete border of the pool.
In a word problem, you need
to be able to interpret words
into mathematical symbols or algebraic expressions, focusing on keywords that specify the mathematical procedures required to
solve the problem with both the operation and the order of the expression. Here
are some examples of verbal phrase for subtraction.
<span>Deduct,
decrease by, difference, left over, less than, minus, reduce, remains, remove, subtract
and take away.</span>
