Answer:
0.67 = x
Step-by-step explanation:
to solve the value of x we need to : (x,9)
y = 3x + 7
9 = 3x + 7
9 - 7 = 3x
2 = 3x
2/3 = x
0.67 = x
<span>. F.3). If the first line intersects the x-axis at the point ... then we associate the ordered pair of real numbers (a, b) with the point P. The number a is called the x-coordinate or abscissa of P and the number b is called the y-coordinate or .... As illustrated in Figure F.12, intersections of a graph with the x-axis have the form (a, 0).</span>
Answer:
Emma types at a rate of 45 words per minute.
Step-by-step explanation:
I know this because if you divide 90/2 you can get 45 because as you see on the graph, every two minutes is 90 words, so just divide 90/2.
Answer:
Option B is correct = 4.082
Step-by-step explanation:
From the question, we have the following information;
Sample A, 60 people are randomly selected = $200 for textbook in one term.
Sample B:, 40 people are randomly selected = $180 for textbook in one term. Standard deviation of sample A and B =$20.
Difference in the average value= 200-180 = 20.
To calculate the standard error we have;
Standard error= SD/√number of sample.
Standard error= 20/√20 = 20/ 4.472
= 4...
Answer:
Phil has 24 more rocks than Peter
Step-by-step explanation:
Lets make Peter x
Then Phil = 3x because Phil has 3 times as many rocks as Peter.
If the sum of the rocks they both have is 48, add them together.
3x+x=48
Solve the equation.
4x=48
Divide by 4.
x=12
Peter has 12 rocks, Phil has 36 rocks
36-12=24
