<u>C. 42 units</u>
Step-by-step explanation:
I have attached a diagram to help you understand this problem. By looking at the diagram you can see that AE is half of BD, and that BD will be equal to AC. So we need to figure out the length of line BD to get AC.
To do this, you will multiply the length of AE by 2 and set it equal to BD.
Then distribute, multiply what is in the parentheses by 2.
Subtract 4x from both sides.
Subtract 2 from both sides.
x = 8
Now that we have x, we can plug it into the equation to find BD.
BD is equal to 42 units, so we know...
<u><em>AC = 42 units</em></u>
Answer: The Cars Average Speed Will Be 60Mph.
If there are n rows
And if each row has m seats.
Then the total number of seats shall be n × m.
Here
Number of rows = (c+8)
And number of seats in each row = (4c-1)
Using the concept
Total number of seats
= (c+8)(4c-1)
FOILing or Distributing we get
= c(4c) + c (-1) + 8(4c) +8 (-1)
= 4c² - c + 32 c -8
Combining like terms
=4c² +31c - 8
The expression for total number of seats = 4c² + 31c -8
Answer:
100
Step-by-step explanation:
Multiply 40 by 3 because 40 is 1/3 and find the answer for 3/3.
I got 120, subtract 20 from 120 beacause there is 20 silver cards. The answer is 100
10 is the answer.
You know that there are 4 numbers and you have to add the numbers then divide them by four to get the mean. So all you have to do is reverse the steps, multiply 30 by 4 to get 120, then add 12+50+48 to get 110. Then subtract, 120-110=10. To check if it is correct add 12, 50, 48, and 10 to get 120, then divide by 4 to get 30. And voila, there is the answer. I hope this helped for future problems like this one.
