When you multiply 35 x 40 = 1400
:)
Answer:
6 ft
Step-by-step explanation:
The building height of 100 ft is 4 times the shadow length of 25 ft. At the same ratio, the person's height is 4 times the 1.5 ft shadow length, so is ...
4 × (1.5 ft) = 6.0 ft
The person is 6 ft tall.
Answer:
2/13 of an hour
Step-by-step explanation:
2 classes of 21 students each
21 × 2 classes = 42 students in total
42 × 3 mins = 126 minutes for 42 students
10 mins for 2 class pics = 20 minutes
126 + 20 = 146 minutes = 2 hours and 26 minutes
It should take 146 minutes (2 hours and 26 minutes) to take all the pictures.
1. Total age of people in the room
40 x 6 = 240
Total age after a person age 30 left the room
240 - 30 = 210
since there are 5 people left in the room,
210 ÷ 5 = 42
42 is the new mean.
2. Not possible
