Hello,
(5x-2)+(2x+6)=67
==>7x+4=67
==>7x=67-4
==>7x=63
==>x=63/7
==>x=9
|AB|=5x-2=5*9-2=45-2=43 (miles)
Answer:

Step-by-step explanation:
we know that
The volume of the triangular prism of the figure is equal to

where
B is the area of the triangular base
h is the height of the triangular prism
Find the value of B

we have that

substitute the values and solve for h


Answer:
I'm not exactly sure what your asking but if you mean equivalent forms your answers are: 0.62 and 62%
But if you mean equivalent fractions your answers are: 62/100 and 93/150
Take away 1 from either side so the equation becomes 63=3x then divide both sides by 3 so it becomes 21=x which is your answer (option A)
Answer:
20
Step-by-step explanation:
Sn = (n/2)(a1 + a1 + d(n-1)), where S = sum, a1 = first term, n = number of terms, d = common difference
400 = (n/2)(1 + 1 + 2(n - 1))
400 = (n/2)(2 + 2n - 2)
400 = (n/2)(2n
400 = n2
20 = n
Twenty numbers are in the set.