Answer:
h = -t+20
After 8 hours the candle will be 12 inches
Step-by-step explanation:
We have 2 points (time, inches)
(3,17) and (5,15)
We can find the slope
m = (y2-y1)/(x2-x1)
= (15-17)/(5-3)
= -2/2
= -1
We can use point slope form
y-y1 = m(x-x1)
Replace y with h and x with t
h-17 = -1 (t-3)
Distribute
h-17 = -t+3
Add 17 to each side
h-17+17 = -t+3+17
h = -t+20
After 8 hours
h = -t+20
h = -8+20
h= 12
Answer:
C. 11
Step-by-step explanation:
Assuming the problem is 5x + (-2 * 2) with x equals 3.
5(3)+(-2*2)
15+(-4)=
15-4=11
Answer:
The inequality represented by the graph is y >
x - 3
Step-by-step explanation:
The form of the linear equation is y = m x + b, where
- m is the slope of the line
The rule of the slope is m =
, where
- (x1, y1) and (x2, y2) are two points on the line
<em>To find the inequality represented by the graph, find at first the equation of the line</em>
∵ The line passes through points (0, -3) and (3, -2)
∴ x1 = 0 and y1 = -3
∴ x2 = 3 and y2 = -2
→ Substitute them in the rule of the slope above to find it
∵ m =
=
= 
∴ m = 
→ Substitute it in the form of the equation above
∴ y =
x + b
∵ b is the y-intercept ⇒ value y at x = 0
∵ y = -3 at x = 0
∴ b = -3
→ Substitute it in the equation
∴ y =
x + -3
∴ y =
x - 3
→ Let us change it to inequality
∵ The line is dashed
∵ The shading area is above the line
∴ The sign of inequality should be >
∴ y >
x - 3
∴ The inequality represented by the graph is y >
x - 3
135/3= 45
Equation: 45w=s
45(8)= 360
Jeremiah saved $360.
Hope this helps!
Answer:
8,110
Step-by-step explanation:
It's falling by 90 each time