For hundred tickets were sold for a school play, for a total 1025. adults were charged $3.50 and students $2.00, how many adults and how many students attended?

150 students and 250 adults

Step-by-step explanation:

x + y = 400          Total number of tickets

3.50x + 2.00y = 1025         Total earnings

3.50 (150) + 2.00 (250) = 1025    Plug in numbers until you find ones that worked

I found that 150 student tickets (x) worked for 3.50 and 250 adult tickets (y) worked for 2.00

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)