Answer:
24
Step-by-step explanation:
4x+16 + 68 = 180
4x + 84 = 180
4x = 96
x = 24
Survey uses ratios to reach conclusions are statistics
Answer:
5x - 1
Step-by-step explanation:
(f + g)(x) = f(x) + g(x), thus
f(x) + g(x)
= 3x - 2 + 2x + 1 ← collect like terms
= 5x - 1
Answer:
<em>x and y are not in direct variation.</em>
Step-by-step explanation:
<u>Direct Variation</u>
Two variables x and y have a direct proportion or variation if:
y = k.x
Where k is the factor of proportionality. The value of k must be constant for every ordered pair (x,y). If only one of them does not have the very same k, then the relationship is not direct.
The value of k can be solved from the equation:

Let's substitute the given points in the table:
<em>(2,8)</em>

k = 4
<em>(4,16)</em>

k = 4
<em>(6,30)</em>

k = 5
Since the value of k is not constant, then x and y are not in direct variation.