Anything times 1 = the same number so 696969x1=696969
Answer:
The answer most probably is 13.
Step-by-step explanation:
Q1. The answer is 100 hours
10 ml is for 1 hours
1l is for x hours
1l = 1000 ml
So, make a proportion:
10 ml is for 1 hours
1000 ml is for x
10 ml : 1h = 1000 ml : x
x = 1h * 1000 ml : 10 ml = 100 hours
Q2. The answers are:
1. kg - measurement of mass
2. cm² - measurement of area
3. L - measurement of volume (1L = 1 dm³)
4. m - measurement of length
42=2.50 × n.
2.50n/2.50. 42/2.50
16.8 is your answer