Answer:
Number of days = 3
Step-by-step explanation:
Let
x = number of days
Rebound game rental = 4 + 2x
Girl right game center = 1 + 3x
Equate both rental companies to find x
Rebound game rental = Girl right game center
4 + 2x = 1 + 3x
Collect like terms
4 - 1 = 3x - 2x
3 = x
x = 3 days
Number of days = 3
Answer:
The constant of variation is $1.50
Step-by-step explanation:
Given
Point 1 (1,2)
Point 2 (5,8)
Required
Constant of Variation
Though the graph would have assisted in answering the question; its unavailability doesn't mean the question cannot be solved.
Having said that,
the constant variation can be solved by calculating the gradient of the graph;
The gradient is often represented by m and is calculated as thus

Where

By substituting values for x1,x2,y1 and y2; the gradient becomes




Hence, the constant of variation is $1.50
You want to find the time <em>t</em> such that

Divide both sides by $200 :

Take the logarithm of both sides:

Divide both sides by 0.04 and solve for <em>t</em> :
