It would be: 63 / 28 = 9 / 4
So, your answer is 9/4
Hope it helped.
Answer:
20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time.
Step-by-step explanation:
One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.
A and E
Just rearrange where the -5 is
The expression is:

Simplify the expression:
1. Multiply the exponent outside the parenthesis with every exponent inside the parenthesis,

Since, exponents in negative form are express as fraction with 1 as numerator.

Answer: 1/81d^(-20)
15 = 3² +2(7-4)
____
The above expression includes operations of
- exponentiation
- subtraction
- multiplication
- addition
The exponent is 2.
I know the value of this expression is 15 because
- I designed the expression to have a value of 15
- I get a value of 15 when I evaluate the expression
- A reliable on-line calculator also gets a value of 15 when it evaluates the expression