If you plug that into a calculator you get 4.5
Answer:
12 weeks
Step-by-step explanation:
every 5 weeks marcus lost 7.5 pounds (232 - 224.5)
or 1.5 per week
so 232 - 214 (start to goal) is a total of 18 pounds
18/1.5 = 12 weeks
You're looking for something like y=2x+3 and 2y=4x+6?
To find the X intercept, replace y with 0 and solve for x:
9x + 21(0) = 16
9x = 16
x = 16/9
To find the Y intercept, replace x with 0 and solve for y:
9(0) + 21y = 16
21y = 16
y = 16/21
X-intercept is 16/9
y intercept is 16/21