Represent the following algebraically. A number, x, decreased by the sum of 2x and 5
1 answer:
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1) 9+4a-36+21-6a 2) -2a-6 3) -2a=6 4) a=-3
The perimeter of a triangle is:
P = a + b + c
We are given that:
b = a + 3
c = 2 a – 3
Therefore:
68 = a + a + 3 + 2 a – 3
68 = 4 a
a = 17
and,
b = a + 3 = 20
<span>c = 2a – 3 = 31</span>
Answer:
1/54
Step-by-step explanation:
I believe you would take the chance of just getting the brother(1/6) and times that by the chance of getting the sister(1/9) which would be 1/54.
The domain of t is the years the account is active: 0 - 6 years. The domain of t sets the range of A.
When t = 0 A = 15,000.00
when t = 6 ; A = 18,979.79
So it's answer D.
Step-by-step explanation:
7×9÷2
By using the rule of BODMAS , we get
7×9÷2
7×4.5
31.5
