Answer:
x= 5.458
Step-by-step explanation:
x+15.92 = 21.378
- 15.92 - 15.92
x = 5.458
Helpful hint: You just have to use inverse opperation to solve these problems
So, basically the opposite of what it is.
34 because it's a bigger number and -$67 is lower
Question:
Lisa walks at an average speed of 6 km/h for 15 hours.
Dan completes the same distance in an hour. Calculate Dan's average speed.
Answer:
Step-by-step explanation:
Given
Lisa:
First, we calculate the distance covered by Lisa:
So, Dan distance can be represented as:
--- Dan completes the same distance as Lisa
-- Time to complete the distance
Dan's average speed is:
<em>Hence, Dan's average speed is 90km/hr</em>
Factor out P:
p(-3n+5)=½
Divide both sides by -3n+5:
p(-3n+5)^-3n+5
½^-3n+5
p=1^-6n+10
The rule of geometric sequence is ⇒⇒⇒ a * r^(n-1)
Where a is the first term and r is the common ratio
for the given sequence √5 , √10 , 2√5 , .......
a = √5
r = √10 / √5 = √2
The ninth term = √5 * (√2)^(9-1) = √5 * (√2)⁸ = 16 √5
the correct answer is the third option 16√5
