Answer:
Step-by-step explanation:
Original Ratio = New Ratio All these problems are done the same way. Try to conquer the language.
The original ratio = 24 inches wide / 12 inches tall
Shawna's new ratio = you don't know / 2 inches in height (or tall)
Call what you don't know = x
24/12 = x / 2 Cross multiply
12 * x = 24 * 2 Combine the right
12 * x = 48 Divide by 12
12x/12 = 48/12
x = 4
So the new height is 4 inches.
The equation looks like this
y≤ -1/3x + 4
And it looks like
closed interval on x=3 and open at x=5
for all values between these numbers, y=3
so [3,5)
7.5 months for him to save up to 60 ;)
Perpendicular = Negative Reciprocal
-3 --> -1/3 ---> 1/3
Therefore it is C
