A(b-c)=d
Ab-Ac=d
-Ab -Ab from both sides
-Ac=d-Ab
divide -A
c=d-Ab over -A and the -A's should cancel so it should be c=db <span />
N=20
3 times 4 is 12. Anything u multiple the top u multiple the bottom. So 5 times 4 is 2
Answer:
1 /30
Step-by-step explanation:
25 marbles in total
P(B,B) = 5/25 x 4/24
= 1/5 x 1/6
Answer:
they are both divisible by 3
7 x 3 = 21
5 x 3 = 15
Step-by-step explanation:
hope this helps lucas (mr. calvelo)
Answer:
57.78 km/hr
Step-by-step explanation:
Total time taken, t = 6 hours
Total distance covered, d = 520 km
Distance by car = 260
Distance by train = 520 - 260 = 260 km
Train speed = x
Car speed = 2x
Average speed speed = 3x /2
Speed = distance / time
1.5x = 520 / 6
9x = 520
x = 520 / 9
x = 57.777
Average speed of train = 57.78 km/hr
