Answer: B
Step-by-step explanation:
To isolate x, you divide both sides by 21
21x=7
x = 7/21
Simplify by dividing both the numerator and denominator by 7
x = 1/3
Since, 1/3 is not an option, B is the correct answer
Which number has the same value as 28 tens?
1 answer:
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Answer:
A. 1,825 days
B. 56 days
C. 1 week
D. 1,209,600 seconds
E. 43,200 seconds
F. 2 hours
Step-by-step explanation:
A. 1 year = 365 days, then
5 years = days = 1,825 days.
B. 1 week = 7 days, then
8 weeks = days = 56 days.
C. 7 days = 1 week.
D. 1 hour = 3,600 seconds, then
336 hours = seconds = 1,209,600 seconds.
E 12 hours = seconds = 43,200 seconds.
F. 3,600 seconds = 1 hour, then
7,200 seconds = hours = 2 hours.