Answer:
it is 20% your welcome
Step-by-step explanation:
because when you divide 100 by 2 its 50 so its 20%
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:
-1,3
Step-by-step explanation:
1 left and 3 up
Answer:
1. Simplify the expression.
x2 + 3
2. Simplify the expression.
x2 − 5
Answer:
15
Step-by-step explanation:
When b = 9,
=> 3a + 9 = 54
=> 3a + 9 - 9 = 54 - 9
=> 3a = 45
=> 3a/3 = 45/3
=> a = 15
Therefore, when b is 9, a is 15
