Answer: Substitution
Step-by-step explanation:
Because you know A is equal to B, you can substitute A for B in any mathematical equation. Essentially, you are switching mA $ mB.
We need to know the distance
Distance = speed × time
Speed = 60 - 10 = 50 mph
Time = 1 hr
Therefore Distance = 50 × 1 = 50 miles
Answer:
1. 201.06
2. 78.54
Step-by-step explanation:
A
=
π
r
22/7× 8²=201.06
22/7× 5²=78.54
It's 2<em>i</em>, if you've gotten into imaginary numbers. if you haven't gotten there yet, then you aren't supposed to take the square root of negative numbers!!
