Answer:
Step-by-step explanation:
The number of months is our unknown, which we will call x. y is the amount she saves. Representing the fact that she puts $10 away per month is 10x. If she puts $300 down initially and then adds 10 per month to that, the first equation is
y = 10x + 300
The same goes for the second option. Putting $30 away every month is represented as 30x, and if she is starting with 100 and adding 30 a month to it, the second equation is
y = 30x + 100
We are being asked to find the number of months where the amount Tina saves is equal. Since y is the amount Tina has saved and we want to know when these amounts are equal, we will set the equations equal to each other and solve for x, the number of months.
10x + 300 = 30x + 100 and
200 = 20x so
x = 10. After 10 months, Tina will have saved the same amount of money regardless of which option she has chosen. This is only true for 10 months though. After that, one will show more of a savings than the other.
Answer: 60 degrees
Step-by-step explanation:
the line is 180 degrees so minus 50 equals 130 minus 10 120 divide my 2 60
Answer:
Q=3
Step-by-step explanation:
There is a range of 5+7=12 points. This means if we are dividing it into thirds each point (R, P, Q, S) will have a distance of 4 between them and the points on either side.
So, since P is 4 larger than R, then P=-5+4=-1, and Q=-1+4=3.
Helium has a zero charge because it has to protons added to 2 electrons. The equation is +2+-2. That equation equals zero.
By the way I had this question on my homework today!