Two shops sell the same brand of baked beans but in different sizes of tin.
1 answer:
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Answer:
<u>131 seats</u> are in the 30th row.
Step-by-step explanation:
The theater is designed with the first row there are 15 seats, in second row 19 seats and in the third row there are 23 seats.
Now, to find the number of seats in the 30th row.
So, we get the common difference() from the arithmetic sequence first:
Thus,
So, the first tem = 15.
The number of last row () = 30.
Now, to get the number of seat in the 30th row we put formula:
Therefore, 131 seats are in the 30th row.
Answer:
The car must drive at 108 km/h to cover the same journey.
Step-by-step explanation:
Given that:
Time taken by bus journey = 45 minutes =
Speed of bus = 60 km/h
Distance of the journey = Speed * Time
Distance of the journey = 60 * 0.75 = 45 km
The car needs to cover 45 km in 25 minutes.
25 minutes =
Distance = Speed * Time
45 =
Speed =
Speed = 108 km/h
Hence,
The car must drive at 108 km/h to cover the same journey.