Answer:
Step-by-step explanation:
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Answer:
only 5 points ;(
Step-by-step explanation:
Answer: = 2(2x + 3) + 3
= 4x + 6 + 3
= 4x + 9
Step-by-step explanation:
Answer:
Option A- 1.8x – 10 = –4; x = 1.8 x minus 10 equals negative 4; x equals StartFraction 10 Over 2 EndFraction.
Let's say that the sides of the poster are a and b. We know that the perimeter is 2a + 2b. We know that one side is 2 times width of the other side. So we can write it all as:
72 = 2a + 2 * 2a
72 = 2a + 4a
72 = 6a / ÷ 6 (both sides)
a = 12
So one side is 12, the other one is 2 * 12 = 24 [inches]. It means that the area of the poster is 12 * 24 = 288 [square inches).