i would need to know the answer choices
Your answer would be, <span>No, it is not a valid inference because her classmates do not make up a random sample of the students in the school </span>
Answer:
B
Step-by-step explanation:
1. Find where the line crosses on the y-axis
2. Find two corresponding points on the graph and do the rise/run method, which in this problem is 4/1 or 4( 4÷1= 4)
- When the line is like this / you rise from up and run to the right(positive), but when it is like this \ you rise from down and run to left (negative)
Ps: You should have taken the picture at a different angle 'cause I can see what you looks like and see part of your room.
Hope I was helpful =)
At the bank, Derek made 7 withdrawals, each in the same amount. His brother, John, made 5 withdrawls, each in the same amount.
Let x be the amount of one of Derek's withdrawals
Each of John's withdrawals was $5 more than each withdrawal that Derek made.
x + 5 is t the amount of one of John's withdrawals
Derek made 7 withdrawals
So amount withdraw 7 times = 7x
John made 5 withdrawals
So amount withdraw 5 times = 5(x+5)
Both Derek and John withdrew the same amount of money in the end
(A) 7x = 5(x+5)
(B) Solve for x
7x = 5x + 25
Subtract 5x from both sides
2x = 25
Divide by 2
x = 12.5
(C) check your solution
we plug in 12.5 for x in 7x= 5x + 25
7(12.5) = 5(12.5) + 25
87.5 = 62.5+ 25
87.5 = 87.5
(D) Each brother withdrawal 87.5 dollars