An equation with an integer coefficient will always have an integer solution. Integers are whole numbers ( positive and negative and zero ). One example of equation:
4 x = 5 ( 4 is an integer coefficient )
x = 5 : 4 = 1.25 ( not an integer )
Answer:
This is false.
So (2x+5) and (x+55) are equal to each other, so
2x+5 = x+55
x+5 = 55
x = 50
Answer:
5 hours
Step-by-step explanation:
-150 miles in all
-75 miles per speed
<u>60 mph...</u>
60 miles per hour over 75 miles
75 miles ÷ 60 miles = 1.25 hours
<u>20 mph...</u>
20 miles per hour over 75 miles
75 miles ÷ 20 miles = 3.75 hours
<u>Total hours of driving...</u>
60 mph for 1.25 hours
20 mph for 3.75 hours
3.75 hours + 1.25 hours = 5 hours total
From the attached graphic:
e = c*h/wavelength therefore,
wavelength = c*h / e
wavelength = 299,792,458 * 6.62606957e-34 / 3.38x10^-19
wavelength = 5.8771e-7 meters
