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Answer: 96.53 would be the answer.
Step-by-step explanation:
Given that the mean of the numbers is 12
so here
let's that one as x and another one as 2x since it is given that one is twice the other
Therefore we get
Given mean = 12
Hence it's 11 and 22
Perimeter: 18.5 inches because to find the perimeter, you add all of the sides of the figure together, and 6+7.5+5=18.5
Area: 15 inches squared because the formula for the area of a triangle is: 1/2bh where b is the base and h is the height. So, 1/2(7.5)*(4) is 15
Answer:
n = -6
Step-by-step explanation:
Distribute the 2, to (n + 5) and you'll get 2n + 10 = -2. Then subtract the 10 from both sides, and you' get, 2n = -12. Then divide -12 by 2 and you get -6 as your final answer.