Solve the equation (d + 12 = 15) for d, and then substitute the value of D into the expression ( -2(d+8) ) and simplify in order to find your answer.
1) Equation. Use algebraic properties to isolate d on one side.
d + 12 = 15
d + 12 - 12 = 15 - 12
d = 3
2) Expression. Substitute 3 into D and simplify.
-2(d - 8)
-2(3 - 8)
-2(-5)
10
Therefore your answer is 10.
Answer:
12 units
Step-by-step explanation:
To find the perimeter given vertices, find the distance from one point to another.
Step 1. Find the distance between (2, 3) & (5, 3)
Answer: 3 (in this case) because for 2 to get to 5, it’s 3 units
Step 2. Find the distance between (5, 3) & (5, 7)
Answer: 4 (in this case) because for 3 to get to 7, it’s 4 units
Step 3. Find the distance between (5, 7) & (2, 3)
Answer: 5
Step 3 explanation: In image.
Step 4. Add all the distances between the points.
3 + 4 + 5 = 12 units
The perimeter is 12 units
you must add the 3 by 4. so 3+4=7+4=11+4=15+4=19+4=23
Step-by-step explanation:
hmmhayauah
So you have 124 so break it down like this... 100+20+4=124