Use Socratic it always works usually but it’s faster
Answer:
1050
Step-by-step explanation:
I'm pretty positive it would be 1050 by multiplying 50 and 20 and adding 50
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>
A: the mean salary is $500.
400+500+600=1500/3=500
b: the median is $500 also.
f(x) = 8x-9
f(4)
let x=4 and substitute in
f(4) = 8*4 -9
f(4) = 32-9
f(4) = 23