The rule is: Before you can add or subtract fractions, they must have
the same denominator.
For this little problem, don't worry about the signs yet. Just make both
fractions have the same denominator. I suggest you change the first one
to something over 250.
When your fractions have the same denominator, you get the sum or difference
like this:
-- The numerator of the answer is the sum or difference of the two numerators.
-- The denominator of the answer is the same as the denominator of the two fractions.
Answer:
The answer is A
Step-by-step explanation:
Answer:
The answer to your question is 24.7 ft
Step-by-step explanation:
Data
length of the ladder = 25 ft
distance from the ladder to the ladder = 4 ft
distance from the floor to the ladder = ?
Process
1.- Use the Pythagorean theorem to solve this problem
c² = a² + b²
- solve for b
b² = c² - a²
-Substitution
b² = (25)² - (4)²
-Simplification
b² = 625 - 16
b² = 609
-Result
b = 24.67 ft ≈ 24.7 ft
-Conclusion
The ladder is 24.7 ft from the floor.