(x-1)/-3 = (x+5)/6
You want to get x by itself. Start by multiplying both sides by -3 and 6:
6(x-1) = -3(x+5)
Distribute:
6x - 6 = -3x + 5
Add 6 and 3x to both sides:
6x + 3x = 5 + 6
9x = 11
Divide both sides by 9 to get x by itself:
x = 11/9
Circumference = 3.1415 (pi) x diameter
44 = 3.1414 x diameter
Diameter = 14.006 or 14 (aprox)
28! hope this helps, you just plug in 4 for x, and then multiply by two.
Answer:
"differential selection"
Step-by-step explanation:
If your friend took the test twice and passed both times with a score above 90% then the minor difference in price is most likely due to "differential selection". The first test had questions that he had a little more experience in solving, while the second time he was most likely given a couple questions that he wasn't as prepared for as he was the first time. This is most likely the cause for the difference in percentiles.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
