Scientific notation is another way to write a number. In scientific notation, the letter E is used to mean "10 to the power of." For example, 1.314E+1 means 1.314 * 101 which is 13.14 .
2.5 miles per hour
Because 3/4 divided by 3/10 is equal to 2.5
Answer:
1.2 meters
Step-by-step explanation:
100 centimeters = 1 meter, so... (multiply both sides by 1.2)
120 centimeters = 1.2 meters
We want to use elimination to solve
y = 0 (1)
x + y = 40 (2)
Multiply (1) by -1 to eliminate y.
-y = 0 (3)
Add (2) and (3).
x + y + (-y) = 40 + 0
x = 40
Answer: Multiply by -1.
