= a₁ + d(n - 1)
In the given problem, a₁ = 15 and d = 3
= 15 + 3(n - 1) = 15 + 3n - 3 = 3n + 12
= 3(56) + 12 = 168 + 12 = 180
Answer: = 3n + 12, 180
Answer:
43
Step-by-step explanation:
Answer:
84kg
Step-by-step explanation:
10*79.2kg=792kg the weight of the 10 people
3*68kg=204kg the weight of the 3 people who get out of the lift
792kg-204kg=<em>588kg the weight of the 7 people left in the lift</em>
so, the mean weight of the 7 people left in the lift=588kg:7=84 kg
Answer:
40,608,000 km or 4.0608× km
Step-by-step explanation:
Speed(km/h) = Distance(km)/Time(Hours)
Distance = Speed × Time
6 days = 24 × 6 = 144 hours
282,000 km/h × 144 hours = 40,608,000 km
For the first one, the answer is -1 1/5
for the second one, the answer is 2.75
for the third one and fourth one,
To divide fractions take the reciprocal (invert the fraction) of the divisor and multiply the dividend. This is the quickest technique for dividing fractions. The top and bottom are being multiplied by the same number and, since that number is the reciprocal of the bottom part, the bottom becomes one