Hi.
Let's assume that the average person has 3 meals a day. No snacks :(
3 · 7 = 21
This is in the tens.
The answer is B.
Ok so lets split it up. 2/3v + 1/3v = 1v or v. -6/5 +1/3. Go from there :)
Answer:
first is 25/4
second is 4 3/8
third is 19 11/16
fourth is 7
Step-by-step explanation:
This is a linear function so it is going to have a constant rate of change (i.e. constant velocity).
First differentiate:
s(t) = 3 - 4t
s'(t) = -4
s'(8) = -4
(The instantaneous velocity at any point will also be -4)
Insert units here if you have them. Like if the y axis says metres, and the x axis says seconds, then your answer should be -4m/s.
Hope this helps.
Answer:
Answer: 13 months.
Step-by-step explanation:
First phone:
f(x)= cost of the first phone
x=number of months
f(x)=55x+100
Second phone:
g(x)=cost of the second phone.
x=number of months.
g(x)=51x+150
Therefore:
The inequality that will determine the number of months, x, that are required for the second phone to be less expensive is:
g(x)<f(x)
51x+150<55x+100
Answer: 51x+150<55x+100
The solution to the inequality is:
51x+150<55x+100
51x-55x<100-150
-4x<-50
-x<-50/4
-x<-12.5
x>12.5
Answer: x>12.5 months (x>13)
Sal’s mother would have to keep the second cell phone plan for at least months in order for it to be less expensive.
