Answer:
put x=3 in equation we get
18-1
17 is the answer
<span>
4.The formula for a trapezoid relates the area A, the two bases, a and b, and the height, h.</span>
The integers are 12, 14.
Solution:
Let the even consecutive integers be x and x + 2.
Lesser number = x and Greater number = x + 2
Lesser number = Half of greater number + 5


To add the numbers, denominators must be same. So multiply 5 by
.


Multiply by 2 on both sides, we get
⇒ 2x = x + 12
Subtract x from both sides.
⇒ x = 12
Lesser number = 12
Greater number = 12 + 2 = 14
Hence the integers are 12, 14.
Answer: C
Step-by-step explanation:









5*(7x + 5y = 29)
<u>+ 21x - 25y = -33
</u>
35x + 25y = 145
<u>+ 21x - 25y = -33</u>
56 x + 0y = 112
56x = 112
x = 2
Plug the x back in to the original equation to solve for y.
7x + 5y = 29
7(2) + 5y = 29
14 + 5y = 29
5y = 15
y = 3
21x - 25y = -33
21(2) - 25y = -33
42 - 25y = -33
-25y = -75
y = 3
x = 2 and y = 3