You're basically adding five because 10 - 5 = 5. Start from zero.
5, 10, 15, 20, 25
Answer:
x ≈ 2.57
Step-by-step explanation:
Δ ACB and Δ AED are similar, thus the ratios of corresponding sides are equal, that is
= , substitute values
= ( cross- multiply )
7x = 18 ( divide both sides by 7 )
x = ≈ 2.57 ( to 2 dec. places )
0.999 is in thousandths place so 0.999 in fraction form would be 999/1000
Answer:
3, 7, 11, 15, 19 is an arithmetic sequence
Step-by-step explanation:
they go up by 4
4x - 2y = 14
y = 0.5x -1
Get just one variable on one side for both equations.
4x - 2y = 14 ⇒ 4x = 2y + 14 ⇒ 4x - 14 = 2y
y = 0.5x - 1 ⇒ x - 2 = 2y
Use the transitive property and then solve for x.
x-2 = 4x-14
12 = 3x
x = 4
<em>Edit: Apprently I didn't use substitution. Oops! Sorry...</em>