The measurement of temperature where for example -2 degrees means 2 degrees below freezing and 2 degrees means 2 degrees above freezing.
Step-by-step explanation:
so to distribute you have to times -2 by -6x, -2 by 3y, and -2 by -1.
I hope you know that negative times a negative equals positive. (-) x (-) = +
The answer will then be 12x - 6y + 2.
Pls, let me know if that helps. ;)
Median is the middle number of a data. To find median, you have to list the numbers in numerical order and find the middle number.
Answer:
A
Step-by-step explanation:
the point is closer to that number.
We have 55% and 80% antifreeze. We need 90 gallons of 75%.
F - 55% and E - 80%
A) F + E = 90
B) .55 F + .80 E = 67.50 (which is .75 * 90) Multiplying A) by -.55
A) -.55 F -.55 E = -49.50 (which is -.55 * 90) then adding A) & B)
.25 E = 18
E = 72 gallons of 80% and
F = 18 gallons of 55%
********* DOUBLE CHECK ******************
72 * .80 = 57.60 and 18 * .55 = 9.90
57.60 + 9.90 = 67.50 gallons of antifreeze and we have 90 total gallons
(67.50 / 90) * 100 = 75% correct!
Source: 1728.com/mixture.htm
