M+2/3=1/2
<=> m= 1/2 - 2/3
<=> m= -1/6
Answer:
1500
Step-by-step explanation:
Given that :
Total number of marbles held by Layala and Zahra = 2700
Ratio = 2 : 7
Layala's share of marbles : (2 / (2+7)) * 2700
= 2/9 * 2700
= 600
Zahra's share of marble : (7 / (2+ 7)) * 2700
= 7 / 9 * 2700
= 2100
Hence, Zahra must have given away (2100 - x) = 600
2100 - 600
= 1500 marbles, so that both Zahra and Layala have the same number of marbles
Speed of object is 80 km/hr
Step-by-step explanation:
- Step 1: Formula for Speed = Distance/Time
Given Distance = 120 km and Time = 90 min
- Step 2: Convert given data into SI units.
Time = 90 min = 90/60 hours = 3/2 = 1.5 hours
- Step 3: Substitute in the formula
Speed = 120 km /1.5 hrs
= 1200/15 = 80 km/hr
Answer:
Is it 63
Step-by-step explanation: