Answer:
E.
data set E: 5, 1, 4, 2, 6, 9, 2
Step-by-step explanation:
Slope:
− 1
y-intercept:
23
-3
Let x equal the mystery number
Our equation will be:
x - 5 = 1 + 3x
Subtract x from both sides
-5 = 1 + 2x
Subtract 1 from both sides
-6 = 2x
Divide both sides by 2
-3 = x
45% × ? = 17.1
17.1 ÷ 45% =
17.1 ÷ (45 ÷ 100) =
(100 × 17.1) ÷ 45 =
1,710 ÷ 45 =
38;
so 45% of 38 = 17.1
