2 hours and a half, or 2 hours and 30 minutes. :-)
Folded mountain with waves, twists, and turns. I believe because the article stated it was gradual and various patterns were formed.
The slope (m) and the ordered pairs are given.
In order to arrive at the standard form : AX + BY = C, we need to form the slope-intercept form first : y = mx + b
Substitute the values in order to get the intercept (b)
y = mx + b
5 = 5/4 * 4 + b
5 = 5 + b
b = 0
So given the m = 5/4, b = 0
y = mx + b
y = 5/4x+ 0
Converting it to Standard Form
y = 5/4x + 0
5/4x - y = 0 (multiply both sides by 4)
5x - 4y = 0
So the Standard form is 5x - 4y = 0
He started with 42 cards.
27-6= 21
21×2= 42.
Hope this helps! :)
\(^ ◇^)/
