Answer: The length of the candle was 13.5 inches before it was lit.
Step-by-step explanation:
Let the length of candle in the beginning be c.
Constant rate of change in length of candle= -1.6 inches per hour
Since rate of change is constant so the length of candle can be represented by a linear function [Linear function has constant rate of change.]
Linear function : f(x)= mx+c , where x= independent variable.
m= constant rate of change and c= initial value of function.
Let x = Number of hours after the candle was lit.
Put m= -1.6 , x= 3 and f(x)= 8.7 , we get
Hence, the length of the candle was 13.5 inches before it was lit.
Answer:
a = 2(b) + 4.
Step-by-step explanation:
Part A: $11 + a = b. A= the extra money he got for walking the dog. B= the total money for walking the dogs.
Part B: a = 2(b) + 4. I did + 4 because it says “Larry was able to walk 4 more than twice as many dogs as his friend Kyle”. This equation would work because a = Larry and b = Kyle, so Larry has 2 times the amount as Kyle plus the 4.
I hope this helps <3
Answer:
more than 200 calls
Suppose number of calls = x
According to plan 1: Total monthly charge is $24
According to plan 2: Fix charge is $16 and $0.04 per call
cost of x's call = $0.04x
and monthly charge according to plan 2 = 0.04x + 16
a) Plan 1 is more economical than plan 2.
0.04x + 16 > 24
solve it for x
.04x > 8
x > 200
b) So, if more than 200 calls are made then Plan 1 is more economical.
Step-by-step explanation:
764 divided by 7 is 109.
1348 divided by 14 is 96.
So angel makes the most cakes in 1 day
Answer:
Radius of the circle = 6 units
Step-by-step explanation:
Let the radius of the circle be r
According to the given condition:
Area of the circle = 3 times the circumference of the circle
