Hello! So in order to solve this problem, it's best to start off making an equation. $18 + $.15x = $29.25
In this equation x represents the number of minutes she used. So now, we just have to solve for x.
First subtract $18 from both sides. Your new equation will be $.15x = $11.25. Then divide both sides by $.15 to get x by itself. $11.25/$.15 = 75.
So we can conclude that Bella spoke on the phone for 75 minutes this last month. Hope this helps!
Answer:
The age of Sue could be 7 years
Step-by-step explanation:
Jenny is 8 years older than twice her cousin Sue's age.
The first equation will be :
J = 8 + 2S ---------(1)
The sum of their ages is less than 32.
The second equation will be :
J + S < 32 ----------------(2)
Now rearrange both equations :
8 + 2S + S < 32
3S < 32 - 8
3S < 24
S < 24/3
S < 8
S = 7
The age of Sue could be 7 years.
Answer:
A and B
Step-by-step explanation:
assuming the function should be
- 
+ 2, then
A
substitute the x value into f(x) and check the validity of the y- value
f(4) = - 
+ 2 = - 27 + 2 = - 25 ← agrees with y value
(4, - 25) lies on the graph
B f(1) = - 
+ 2 = - 1 + 2 = 1 ← agrees with y value
(1, 1) lies on the graph
C
f(- 1) = - 
+ 2 = - 
+ 2 ≠ 2
(- 1, 2) does not lie on the graph
D
f(0) = 
+ 2 = - 
+ 2 ≠ 0
(0, 0) does not lie on the graph
To get the divided by 3 away, multiply the 6 times 3. That way we have 18=x+2
Next we need to get rid of the 2 so we subtract 2 from 18 to get the answer.
16=x
