Answer:
m∠ABC = 68°
m∠DEF = 112°
Step-by-step explanation:
Supplementary angles are angles that add up to 180 degrees (they form a straight line).
If ∠ABC and ∠DEF are supplementary, that means that they add up to 180. We can write this in an equation:
- (6x + 8) + (12x - 8) = 180
Combine like terms.
Divide both sides by 18.
Find the measure of each angle by substituting 10 for x into both expressions for the angles.
m∠ABC = (6x + 8)°
m∠DEF = (12x - 8)°
Answer:
$2.09
Step-by-step explanation:
3.8 x .55 = 2.09
Answer:
2/3 magazines per hour
Step-by-step explanation:
Olivia writes 2 new sheets of magazines in 3 hours.
The rate per hour at with she writes the sheets of magazines is the number of sheets divided by the amount of time taken to write the sheets.
Hence, the rate per hour is:
R = 2 / 3 = 2/3 magazines per hour
The rate per hour at with she writes the sheets of magazines is 2/3 magazines per hour.
The EER of a cooling system is the ratio of BTUs per hour to watts.
.. EER = (6000 BTU/h)/(500 W)
.. EER = 12
To round to the nearest ten thousand, look at the number in that place. This number is 8. Now look at the number after it. It is less than five so keep the number as it is. This number rounded would be 780,000.