Answer:
slow hiker rate= 1.1mph and fast hiker rate= 5.5 mph
Step-by-step explanation:
lets consider the Speed of the slow hiker =x
Then Speed of fast hiker =x+4.4
As we know that distance is the product of speed and time
therefore,
Distance covered by slow hiker in 5 hours = 5x km
Distance covered by fast hiker in 5 hours=5 (x+4.4)=5x+22 km
As they are are 33 miles apart , therefore
5x + 5x+22 = 33
10x = 33-22
10x = 11
x =11/10 => 1.1
Rate of slow hiker is x i.e 1.1mph
Rate of fast hiker = x+4.4 => 5.5 mph
Answer:
Median: 88.5
Mean: 69.75
Step-by-step explanation:
Mean: add all numbers and divide by the amount of numbers.
Median: find the center most number. If none exist, take the two center most numbers and divide them by 2.
Mean: 12+88+89+90
279/4
69.75
Median:
(88+89)/2
177/2
88.5
Answer:
Step-by-step explanation:
$13.79 for 7 light bulbs!