There's 5280 feet in a mile. 5280x16=84,480 feet an hour. Then divide by 60 to get feet per minute. 84,480/60=1408 feet a minute. This is not one of the answers but this is correct. 528 feet a minute is 6 miles per hour. 5280 feet a minute is 60 miles per hour. The answer would have to be in between.
Answer:
5%
Step-by-step explanation:
6,250-5000
1,250
divide that by 5
you get 250
250/5000= 0.05
multiply that by 100 to get the percentage (interest rate)
so the answer is a 5% interest rate
Heron’s formula is useful when we know all three sides of triangle
Answer:
n(t) = 10×1.2^t
Step-by-step explanation:
The idea here is that the number of ill students is multiplied by 1+20% = 1.20 each hour. That is, after t hours, you have multiplied the original number by 1.20 "t" times. Of course, repeated multiplication is signified using an exponent.
The form you can use in such cases is ...
value = (initial value)×(growth factor in period)^(number of periods)
Here, you're given a growth rate (20% per hour), so you add 1 to get the growth factor (as we showed above).
Your exponential function can be ...
n(t) = 10×1.20^t
Answer:
-13
Step-by-step explanation:
(7−15−3+5−7)⋅1
Subtract 15 from 7 to get −8.
(−8−3+5−7)×1
Subtract 3 from −8 to get −11.
(−11+5−7)×1
Add −11 and 5 to get −6.
(−6−7)×1
Subtract 7 from −6 to get −13.
−13