Answer:
6 weeks.
Step-by-step explanation:
Let x be the number of weeks to be found.
Then 4.5x + 18 / 4x = 15/8
Cross multiply:
36x + 144 = 60x
24x = 144
x = 6 (answer).
Answer:
it is not valid because some rhombuses do not fit this definition
City A:
Mean: Add them all to get 28 and divide by 7 to get 4.
Median: Put them in order and the middle number is 4.
Mode: The most frequent number is 5.
Range: 5 - 2 = 3
City B:
Mean: Add them all to get 30 and divide by 6 to get 5.
Median: Put them in order and the middle number is 4.5
Mode: The most frequent number is 3.
Range: 8 - 3 = 5
Answer: C
Step-by-step explanation: Hope this help :D