-4 1. -8. 24. 12. 40
-4. 48. -288. 1104
1 -12. 72. -276. R1144
ANSWER:
X^3-12x^2+72x-276+1144/x+4
I think that this an example of a paired t test. Since each student (subject) is given 2 treatments of the same material.
We know that speed * time = distance
Before we start we need to make sure the units for all three numbers are right
The time is 1/3 of a hour, 1/3*60 = 20 minutes
x * 20 = 22.5
x *2 * 10 = 22.5
2x = 2.25
x = 1.125
Answer:
1 + 1 = 11
Step-by-step explanation:
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on
now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%
anyway thus

solve for "x"