step 1 LCD of 5 and 3 is 15
step2 convert the fractions to 15th's
-3/5 * 3/3 = -9/15
2/3 * 5/5 = 10/15
step3 -9/15 + 10/15 = (-9 + 10)/15
= 1/ 15 (answer)
B is false because if two numbers are rational they will always multiply to a rational number.
Answer:
46.6667%
Step-by-step explanation:
Divide 7 by 15 because that's how you calculate the chance of receiving marbles
7/15 is equal to 0.466667 approx..
To convert to Percent form, multiply by 100
0.466667 *100=46.6667
Answer:
2:1
Step-by-step explanation:
9 is double 4.5
Answer:
The train ride is 3.5 hours
Step-by-step explanation:
We know that distance is equal to rate times time
d = rt
We know the distance and the rate
420 = 120*t
Divide each side by 120
420/120 = 120t/120
3.5 =t
The train ride is 3.5 hours
