Answer:
8n=20+6(n-2)
Step-by-step explanation:
n is the number of GB
Plan A has no initial fee and charges 8$ per each GB
So A has an equation that is y=0+8n or just y=8n.
Plan B has 20 for the first 2 GB and $6 for each addition GB after the first 2.
So B has an equation that is y=0+20+6(n-2) assuming n is 2 are greater.
So the two equations are y=8n and y=20+6(n-2).
We want Plan A to be the same as Plan B.
So we need to solve:
8n=20+6(n-2).
Let's check our equation:
Distribute:
8n=20+6n-12
Subtract 6n on both sides:
2n=20-12
2n=8
Divide both sides by 2:
n=4
Plan A charges 8 dollars ber GB, so plan A charges 4(8)=32 dollars.
Plan B charges 20 dollars for the first 2GB and 6 dollars for each GB after so we used 4 which means we are spending 20+6(2)=20+12=32 dollars.
They are the amount so n=4 is right.
Your answers is
(1,-1)
(2,1)
Answer:
C
Step-by-step explanation:
The tricky part is always what is in the brackets with the x. It is highly anti intuitive.
(x + 2) moves the graph left, not right as you might think. So from this, only C and D can be considered as answers.
Since the 2 is with the x, that's how many units left you will go -- 2 units.
C is the only possible answer.
The - 7 tells you it will move 7 units down. The 7 with a minus acts the way you think it should. It goes down which is what normally happens on a graph. A mnus number outside the brackets means down.
T=d/6+3
1. Fill in: t=12/6+3
2. Remember PEMDAS!! P(parenthesis)E(Exponents)M(multiply)D(divide)A(add)S(subtract)
So, you will divide 12 by 6 first, which equals out to 2.
3. Write your new equation: t=2+3
4. Add 2+3, which equals to 5.
t=5
Answer:
Use the equation mx+b=y
mx represents the slope and b represents the y intercept.
So, this would mean the equation is : 1/2x + -7 = y
