Answer:
-4/5
Step-by-step explanation:
Slope of line = (y2 - y1) / (x2 - x1)
Two points on the line are (2,-3) and (-3,1)
Apply the formula
Slope = (1-(-3)) / (-3-2) = -4/5
:)
Answer:
75:80 OR 15:16
Step-by-step explanation:
#1 1.5x + 2.5y = 884.50
#2 x + y = 435
Remember, x represents the children and y represents the adult
The first equation represents the cost of tickets, while the second one represents the number of people.
Find x in equation #2 & plug it into equation #1.
(usually choose easiest equation to solve first, but it's your preference)
x + y = 435
x = 435 - y. ***
Use the equation*** above and plug it into equation #2.
Plugging in x, to solve for y:
1.5(x) + 2.5y = 884.50
1.5(435 - y) + 2.5y = 884.50
652.50 - 1.5y + 2.5y = 884.50
(subtract 652.50 from both sides)
-1.5y + 2.5y = 232
y = 232
Solve for x using equation #2 (or whichever you prefer) and plug in y.
x + y = 435
x + 232 = 435
(subtract 232 from both sides)
x = 203
There were 203 children and 232 adults at the pool that day.
40 and 40 and 100 is one set
Another is 40 and 70 and 70
