Answer:
$85
Step-by-step explanation:
Let y represent Timmy's money after x weeks. If we assume that the only money Timmy has is what is mentioned in the problem statement, then ...
y = 50 +5x . . . . . $50 initially plus $5 for each week
After 7 weeks, x = 7, so Timmy's fortune will be ...
y = 50 +5(7) = 50 +35
y = 85
Timmy will have $85 in 7 weeks.
The points of intersection are (-2, -2) and (5, 5), so clearly y = x. This reduces the choices to the first and third ones.
Since x-4 is the denominator of all choices, its value at the point (5, 5) will be 1. Hence you need to find the choice that has a numerator of 5 when x=5.
The first choice has a numerator of -5-10 = -15, so that's not it.
The third choice has a numerator of -5+10 = 5, so that's the one you're looking for.
The best choice is the third one, ...
... y = negative x plus ten divided by the quantity x minus four , y = x
Answer:
B
Step-by-step explanation:
5/12=x/18
x=7.5
The height of new triangle is 7.5cm