Hi i wanted to help you but i hate math do i am soooooooo sorry
Step-by-step explanation:
1 km = 1000 m
(hence the term "kilo" which means 1000).
so. he runs 1000 m at the rate of 3 minutes per km, that means 3 minutes per 1000 m.
now, we can see the solution already with our eyes.
but let's do it formally :
the rate or ratio between time and distance must be the same for the same speed.
so,
3 min / 1000 m = x min / 500 m
500 m × 3 min / 1000 m = x min
1/2 × 3 min = x min
3/2 = 1.5 min = x min
so, it takes him 1.5 minutes (90 seconds) to run 500 m.
Answer:
The solved given fractional expression is 
Therefore the given fractional expression becomes
Step-by-step explanation:
Given fractional expression is 
To solve the given fractional expression as below :
( here taking the term 3 as LCM )
( by adding the sums here )
Therefore the solved given fractional expression is
Therefore the given fractional expression becomes
The solved given fractional expression is
Answer:
12 mm
Step-by-step explanation:
Use Pyth Theor
9^2 + b^2 = 15^2
81 + b^2 = 225
b^2 = 144
sqrt 144 = 12
b = 12
Answer:
12 months or a year
Step-by-step explanation:
300÷25=12
